Vulnerability-Lookup

RHSA-2026:43401

Vulnerability from csaf_redhat - Published: 2026-07-22 12:26 - Updated: 2026-07-22 15:03

Summary

Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.4 release and security update

Severity

Important

Notes

Topic: Red Hat JBoss Web Server 6.2.4 is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, and Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector (mod_cluster), the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library. This release of Red Hat JBoss Web Server 6.2.4 serves as a replacement for Red Hat JBoss Web Server 6.2.3. This release includes bug fixes, enhancements and component upgrades, which are documented in the Release Notes that are linked to in the References section. Security Fix(es): * tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated (CVE-2026-41293) * tomcat-coyote: Apache Tomcat: Information disclosure via AJP secret timing discrepancy (CVE-2026-43514) * tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication (CVE-2026-43512) * tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm (CVE-2026-43513) * tomcat-coyote: tomcat: Improper Authorization allows security bypass (CVE-2026-43515) * tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication (CVE-2026-42498) * tomcat-catalina: Apache Tomcat: Denial of Service due to uncontrolled resource allocation (CVE-2026-41284) * tomcat-catalina: Apache Tomcat: Incorrect control flow in rewrite valve allows unexpected rule processing (CVE-2026-53404) * tomcat-catalina: Apache Tomcat: Improper Authorization Allows Security Constraint Bypass (CVE-2026-55956) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-41284

In Apache Tomcat, no limit was enforced on the request body for WebDAV LOCK or PROPFIND requests which were available to unauthenticated users. This allows a remote attacker to consume excessive resources, leading to Denial of Service (DoS), making the affected system unavailable to legitimate users.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix

Threats

Impact Important

CVE-2026-41293

Apache Tomcat did not validate HTTP/2 request headers, triggering unexpected application behavior, as applications may presume that header values exposed through the Servlet API would be valid.

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE-1286 - Improper Validation of Syntactic Correctness of Input

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix

Threats

Impact Moderate

CVE-2026-42498

A flaw was found in Apache Tomcat. During WebSocket authentication, the HTTP Authentication Header can be exposed to unexpected hosts. This vulnerability leads to information disclosure, potentially allowing an attacker to gain access to sensitive authentication credentials.

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE-201 - Insertion of Sensitive Information Into Sent Data

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix

Threats

Impact Moderate

CVE-2026-43512

A flaw was found in Apache Tomcat. When DIGEST authentication was configured, any user not known to the configured Realm would be authenticated if they presented the password "null". This allows a remote attacker to bypass security controls.

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE-303 - Incorrect Implementation of Authentication Algorithm

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2026-43513

In Apache Tomcat, LockOutRealm mishandled case sensitivity in usernames, resulting in less effective blocking of brute force attacks.

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE-178 - Improper Handling of Case Sensitivity

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2026-43514

A flaw was found in Apache Tomcat. The AJP secret was comparable in non-constant time, allowing an attacker on the local network to mount a timing attack to determine the AJP secret, which may lead to unauthorized access or other security bypasses.

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE-208 - Observable Timing Discrepancy

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix

Threats

Impact Low

CVE-2026-43515

In Apache Tomcat, when multiple security constraints defined an HTTP method constraint for the same extension pattern, only the first method constraint was applied. A remote attacker could exploit this to bypass intended security restrictions for information or actions within the application.

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2026-53404

A flaw was found in Apache Tomcat's rewrite valve. This vulnerability involves an incorrect control flow implementation where, during the processing of rewrite rules, if the first condition in an OR chain matched, subsequent non-OR conditions were unexpectedly skipped. This can lead to unintended rule processing, potentially allowing for security bypasses or unauthorized access due to misapplied configurations.

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE-358 - Improperly Implemented Security Check for Standard

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2026-55956

A flaw was found in Apache Tomcat where access control rules for the default servlet are improperly handled. An attacker can exploit this issue to bypass specific HTTP method restrictions, potentially gaining unauthorized access to protected application resources.

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

Affected products

Fixed 33 products

Product	Version	Remediation
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el10jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 10Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el10jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el8jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 8Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el8jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws.src	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-admin-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-docs-webapp-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-el-5.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-javadoc-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-jsp-3.1-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-lib-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-selinux-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-servlet-6.0-api-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround
Unresolved product id: 9Base-JWS-6.2:jws6-tomcat-webapps-0:10.1.49-15.redhat_00013.1.el9jws.noarch	—	Vendor Fix fix Workaround

Threats

Impact Moderate

References

58 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:43401	self
https://access.redhat.com/security/updates/classi…	external
https://docs.redhat.com/en/documentation/red_hat_…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2476511	external
https://bugzilla.redhat.com/show_bug.cgi?id=2476512	external
https://bugzilla.redhat.com/show_bug.cgi?id=2476513	external
https://bugzilla.redhat.com/show_bug.cgi?id=2476516	external
https://bugzilla.redhat.com/show_bug.cgi?id=2476518	external
https://bugzilla.redhat.com/show_bug.cgi?id=2476519	external
https://bugzilla.redhat.com/show_bug.cgi?id=2476520	external
https://bugzilla.redhat.com/show_bug.cgi?id=2494676	external
https://bugzilla.redhat.com/show_bug.cgi?id=2494681	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-41284	self
https://bugzilla.redhat.com/show_bug.cgi?id=2476518	external
https://www.cve.org/CVERecord?id=CVE-2026-41284	external
https://nvd.nist.gov/vuln/detail/CVE-2026-41284	external
https://lists.apache.org/thread/2nvqjr7ovjmvx2vbh…	external
https://access.redhat.com/security/cve/CVE-2026-41293	self
https://bugzilla.redhat.com/show_bug.cgi?id=2476513	external
https://www.cve.org/CVERecord?id=CVE-2026-41293	external
https://nvd.nist.gov/vuln/detail/CVE-2026-41293	external
https://lists.apache.org/thread/qwg0q16z7xkb2qrr8…	external
https://access.redhat.com/security/cve/CVE-2026-42498	self
https://bugzilla.redhat.com/show_bug.cgi?id=2476516	external
https://www.cve.org/CVERecord?id=CVE-2026-42498	external
https://nvd.nist.gov/vuln/detail/CVE-2026-42498	external
https://lists.apache.org/thread/n61zwf75jrv09rz90…	external
https://access.redhat.com/security/cve/CVE-2026-43512	self
https://bugzilla.redhat.com/show_bug.cgi?id=2476511	external
https://www.cve.org/CVERecord?id=CVE-2026-43512	external
https://nvd.nist.gov/vuln/detail/CVE-2026-43512	external
https://lists.apache.org/thread/7x09x7o12solvclsl…	external
https://access.redhat.com/security/cve/CVE-2026-43513	self
https://bugzilla.redhat.com/show_bug.cgi?id=2476520	external
https://www.cve.org/CVERecord?id=CVE-2026-43513	external
https://nvd.nist.gov/vuln/detail/CVE-2026-43513	external
https://lists.apache.org/thread/ytjcgldshj73lcnd1…	external
https://access.redhat.com/security/cve/CVE-2026-43514	self
https://bugzilla.redhat.com/show_bug.cgi?id=2476512	external
https://www.cve.org/CVERecord?id=CVE-2026-43514	external
https://nvd.nist.gov/vuln/detail/CVE-2026-43514	external
https://lists.apache.org/thread/2k654v5cq123npfsd…	external
https://access.redhat.com/security/cve/CVE-2026-43515	self
https://bugzilla.redhat.com/show_bug.cgi?id=2476519	external
https://www.cve.org/CVERecord?id=CVE-2026-43515	external
https://nvd.nist.gov/vuln/detail/CVE-2026-43515	external
https://lists.apache.org/thread/746nxfxod0wsocxtm…	external
https://access.redhat.com/security/cve/CVE-2026-53404	self
https://bugzilla.redhat.com/show_bug.cgi?id=2494681	external
https://www.cve.org/CVERecord?id=CVE-2026-53404	external
https://nvd.nist.gov/vuln/detail/CVE-2026-53404	external
https://lists.apache.org/thread/rdhpghgfskrdmw9hq…	external
https://access.redhat.com/security/cve/CVE-2026-55956	self
https://bugzilla.redhat.com/show_bug.cgi?id=2494676	external
https://www.cve.org/CVERecord?id=CVE-2026-55956	external
https://nvd.nist.gov/vuln/detail/CVE-2026-55956	external
https://lists.apache.org/thread/dcjdcnnnww9hhdm01…	external

JSON

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          "text": "In Apache Tomcat, no limit was enforced on the request body for WebDAV LOCK or PROPFIND requests which were available to unauthenticated users. This allows a remote attacker to consume excessive resources, leading to Denial of Service (DoS), making the affected system unavailable to legitimate users.",
          "title": "Vulnerability description"
        },
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          "text": "tomcat: Apache Tomcat: Denial of Service due to uncontrolled resource allocation",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-41284",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-41284"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-41284",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41284"
        },
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          "category": "external",
          "summary": "https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc",
          "url": "https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc"
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          "date": "2026-07-22T12:26:18+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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        "id": "CWE-1286",
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        {
          "category": "description",
          "text": "Apache Tomcat did not validate HTTP/2 request headers, triggering unexpected application behavior, as applications may presume that header values exposed through the Servlet API would be valid.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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      "title": "tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated"
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    {
      "cve": "CVE-2026-42498",
      "cwe": {
        "id": "CWE-201",
        "name": "Insertion of Sensitive Information Into Sent Data"
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      "ids": [
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          "text": "2476516"
        }
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        {
          "category": "description",
          "text": "A flaw was found in Apache Tomcat. During WebSocket authentication, the HTTP Authentication Header can be exposed to unexpected hosts. This vulnerability leads to information disclosure, potentially allowing an attacker to gain access to sensitive authentication credentials.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication.",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication."
    },
    {
      "cve": "CVE-2026-43512",
      "cwe": {
        "id": "CWE-303",
        "name": "Incorrect Implementation of Authentication Algorithm"
      },
      "discovery_date": "2026-05-12T16:01:26.008892+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2476511"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Apache Tomcat. When DIGEST authentication was configured, any user not known to the configured Realm would be authenticated if they presented the password \"null\". This allows a remote attacker to bypass security controls.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This Moderate flaw in Apache Tomcat allows an authentication bypass when DIGEST authentication is configured. An attacker can authenticate as any unknown user by providing the password \u0027null\u0027, potentially gaining unauthorized access to applications protected by DIGEST authentication. Red Hat products are only affected if they are configured to use DIGEST authentication, which is not a common, out of the box and expected configuration for Production environments. \n\nFurthermore, because the unknown user is not mapped to any valid realm roles, their access is still restricted by standard application authorization constraints, significantly limiting the actual impact.\n\nThe unknown user is not mapped to any existing user, which means, it does not steal credentials nor impersonate an existing user. This new user is expected to have the minimum possible authentication and authorization range within the realm inherited roles.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-43512"
        },
        {
          "category": "external",
          "summary": "RHBZ#2476511",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476511"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-43512",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-43512"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43512",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43512"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/7x09x7o12solvclslw3sz0288xc8wx73",
          "url": "https://lists.apache.org/thread/7x09x7o12solvclslw3sz0288xc8wx73"
        }
      ],
      "release_date": "2026-05-12T15:24:02.424000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-22T12:26:18+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "url": "https://access.redhat.com/errata/RHSA-2026:43401"
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication"
    },
    {
      "cve": "CVE-2026-43513",
      "cwe": {
        "id": "CWE-178",
        "name": "Improper Handling of Case Sensitivity"
      },
      "discovery_date": "2026-05-12T16:01:48.767743+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2476520"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "In Apache Tomcat, LockOutRealm mishandled case sensitivity in usernames, resulting in less effective blocking of brute force attacks.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "A flaw was found in Apache Tomcat\u0027s LockOutRealm. When configured with an underlying Realm where usernames are case-insensitive, the LockOutRealm does not account for case differences, potentially reducing the effectiveness of brute-force protection. Exploitation requires LockOutRealm to be configured with a case-insensitive authentication backend, which is a non-default configuration.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-43513"
        },
        {
          "category": "external",
          "summary": "RHBZ#2476520",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476520"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-43513",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-43513"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43513",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43513"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/ytjcgldshj73lcnd1sh95od5hrghwogp",
          "url": "https://lists.apache.org/thread/ytjcgldshj73lcnd1sh95od5hrghwogp"
        }
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      "release_date": "2026-05-12T15:26:25.599000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-22T12:26:18+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "url": "https://access.redhat.com/errata/RHSA-2026:43401"
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          "details": "Moderate"
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      "title": "tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm"
    },
    {
      "cve": "CVE-2026-43514",
      "cwe": {
        "id": "CWE-208",
        "name": "Observable Timing Discrepancy"
      },
      "discovery_date": "2026-05-12T16:01:28.665836+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2476512"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Apache Tomcat. The AJP secret was comparable in non-constant time, allowing an attacker on the local network to mount a timing attack to determine the AJP secret, which may lead to unauthorized access or other security bypasses.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat-coyote: Apache Tomcat: Information disclosure via AJP secret timing discrepancy",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-43514"
        },
        {
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          "summary": "RHBZ#2476512",
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-43514",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-43514"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43514",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43514"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/2k654v5cq123npfsd1b2kk1y30owqb1m",
          "url": "https://lists.apache.org/thread/2k654v5cq123npfsd1b2kk1y30owqb1m"
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          "category": "vendor_fix",
          "date": "2026-07-22T12:26:18+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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      "threats": [
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          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "tomcat-coyote: Apache Tomcat: Information disclosure via AJP secret timing discrepancy"
    },
    {
      "cve": "CVE-2026-43515",
      "cwe": {
        "id": "CWE-551",
        "name": "Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"
      },
      "discovery_date": "2026-05-12T16:01:46.217175+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2476519"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "In Apache Tomcat, when multiple security constraints defined an HTTP method constraint for the same extension pattern, only the first method constraint was applied. A remote attacker could exploit this to bypass intended security restrictions for information or actions within the application.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat-coyote: tomcat: Improper Authorization allows security bypass",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-43515"
        },
        {
          "category": "external",
          "summary": "RHBZ#2476519",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476519"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-43515",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-43515"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43515",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43515"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb",
          "url": "https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb"
        }
      ],
      "release_date": "2026-05-12T15:33:23.311000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-22T12:26:18+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tomcat-coyote: tomcat: Improper Authorization allows security bypass"
    },
    {
      "cve": "CVE-2026-53404",
      "cwe": {
        "id": "CWE-358",
        "name": "Improperly Implemented Security Check for Standard"
      },
      "discovery_date": "2026-06-29T21:01:58.363486+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2494681"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Apache Tomcat\u0027s rewrite valve. This vulnerability involves an incorrect control flow implementation where, during the processing of rewrite rules, if the first condition in an OR chain matched, subsequent non-OR conditions were unexpectedly skipped. This can lead to unintended rule processing, potentially allowing for security bypasses or unauthorized access due to misapplied configurations.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Apache Tomcat: Apache Tomcat: Incorrect control flow in rewrite valve allows unexpected rule processing",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "A flaw was found in Apache Tomcat\u0027s RewriteValve. When rewrite rules use OR-chained conditions followed by non-OR conditions, the processing logic may not evaluate conditions correctly, potentially allowing unintended rule matches. Exploitation requires the RewriteValve to be enabled with specific OR-chained condition patterns, which is not a default configuration.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-53404"
        },
        {
          "category": "external",
          "summary": "RHBZ#2494681",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2494681"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-53404",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-53404"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-53404",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53404"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/rdhpghgfskrdmw9hqzjgjrtw538smpmz",
          "url": "https://lists.apache.org/thread/rdhpghgfskrdmw9hqzjgjrtw538smpmz"
        }
      ],
      "release_date": "2026-06-29T20:39:45.317000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-22T12:26:18+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "url": "https://access.redhat.com/errata/RHSA-2026:43401"
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            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Apache Tomcat: Apache Tomcat: Incorrect control flow in rewrite valve allows unexpected rule processing"
    },
    {
      "cve": "CVE-2026-55956",
      "cwe": {
        "id": "CWE-551",
        "name": "Incorrect Behavior Order: Authorization Before Parsing and Canonicalization"
      },
      "discovery_date": "2026-06-29T21:01:42.101197+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2494676"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Apache Tomcat where access control rules for the default servlet are improperly handled. An attacker can exploit this issue to bypass specific HTTP method restrictions, potentially gaining unauthorized access to protected application resources.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat: Apache Tomcat: Improper Authorization Allows Security Constraint Bypass",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "A security flaw in Apache Tomcat allows an attacker to bypass specific HTTP method restrictions on the default servlet. Red Hat products utilizing affected Tomcat versions are vulnerable if they rely on these method-specific security constraints. This could potentially enable unauthorized access to restricted application resources.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-55956"
        },
        {
          "category": "external",
          "summary": "RHBZ#2494676",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2494676"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-55956",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-55956"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-55956",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55956"
        },
        {
          "category": "external",
          "summary": "https://lists.apache.org/thread/dcjdcnnnww9hhdm016hr0l7hpw1bzjfp",
          "url": "https://lists.apache.org/thread/dcjdcnnnww9hhdm016hr0l7hpw1bzjfp"
        }
      ],
      "release_date": "2026-06-29T20:46:02.927000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-22T12:26:18+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
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CVE-2026-41284 (GCVE-0-2026-41284)

Vulnerability from cvelistv5 – Published: 2026-05-12 15:14 – Updated: 2026-05-13 15:57

Title

Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling

Summary

Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/2nvqjr7ovjmvx2vbh…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.21 (semver) Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 10.0.0-M1 , ≤ 10.0.27 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 4.0 , ≤ 7.0.109 (semver)

Credits

Dariusz Gońda

Show details on NVD website

JSON

To clipboard

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CVE-2026-41293 (GCVE-0-2026-41293)

Vulnerability from cvelistv5 – Published: 2026-05-12 15:19 – Updated: 2026-05-14 19:54

Title

Apache Tomcat: HTTP/2 request headers not validated

Summary

Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-20 - Improper Input Validation

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/qwg0q16z7xkb2qrr8…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.21 (semver) Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 10.0.0-M1 , ≤ 10.0.27 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver)

Credits

Dawit Jeong (@dawitngoliath)

Show details on NVD website

JSON

To clipboard

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CVE-2026-42498 (GCVE-0-2026-42498)

Vulnerability from cvelistv5 – Published: 2026-05-12 15:17 – Updated: 2026-05-13 15:59

Title

Apache Tomcat: WebSocket authentication header exposure

Summary

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.2 through 9.0.117, from 8.5.24 through 8.5.100, from 7.0.83 through 7.0.109. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118, which fix the issue.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-200 - Exposure of HTTP Authentication Header to unexpected hosts

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/n61zwf75jrv09rz90…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.21 (semver) Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.2 , ≤ 9.0.117 (semver) Affected: 8.5.24 , ≤ 8.5.100 (semver) Affected: 7.0.83 , ≤ 7.0.109 (semver)

Credits

lokerxx

Show details on NVD website

JSON

To clipboard

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CVE-2026-43512 (GCVE-0-2026-43512)

Vulnerability from cvelistv5 – Published: 2026-05-12 15:24 – Updated: 2026-05-14 19:53

Title

Apache Tomcat: Digest authenticator will authenticate any unknown user

Summary

DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0. Older unsupported versions any also be affect Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-592 - DEPRECATED: Authentication Bypass Issues

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/7x09x7o12solvclsl…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/05/12/8

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.21 (semver) Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 7.0.0 , ≤ 7.0.109 (semver) Unknown: 0 , < 7.0.0 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-43513 (GCVE-0-2026-43513)

Vulnerability from cvelistv5 – Published: 2026-05-12 15:26 – Updated: 2026-05-14 19:53

Title

Apache Tomcat: LockOutRealm treats user names as case-sensitive

Summary

Improper Handling of Case Sensitivity vulnerability in LockOutRealm in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-178 - Improper Handling of Case Sensitivity

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/ytjcgldshj73lcnd1…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/05/12/9

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.21 (semver) Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 7.0.0 , ≤ 7.0.109 (semver) Unknown: 0 , < 7.00 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-43514 (GCVE-0-2026-43514)

Vulnerability from cvelistv5 – Published: 2026-05-12 15:32 – Updated: 2026-05-13 17:22

Title

Apache Tomcat: AJP secret compared in non-constant time

Summary

Observable Timing Discrepancy vulnerability when comparing AJP secret in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Severity

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-208 - Observable Timing Discrepancy

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/2k654v5cq123npfsd…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.21 (semver) Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 7.0.0 , ≤ 7.0.109 (semver) Unknown: 0 , < 7.00 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-43515 (GCVE-0-2026-43515)

Vulnerability from cvelistv5 – Published: 2026-05-12 15:33 – Updated: 2026-06-04 09:57

Title

Apache Tomcat: Security constraints not correctly applied

Summary

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-285 - Improper Authorization

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/746nxfxod0wsocxtm…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.21 (semver) Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 7.0.0 , ≤ 7.0.109 (semver) Unknown: 0 , < 7.0.0 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-53404 (GCVE-0-2026-53404)

Vulnerability from cvelistv5 – Published: 2026-06-29 20:39 – Updated: 2026-06-30 12:34

Title

Apache Tomcat: Bad ornext processing in RewriteValve

Summary

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-670 - Always-Incorrect Control Flow Implementation

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/rdhpghgfskrdmw9hq…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.22 (semver) Affected: 10.1.0-M1 , ≤ 10.1.55 (semver) Affected: 9.0.0.M1 , ≤ 9.0.118 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Unaffected: 0 , < 8.0.0 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-55956 (GCVE-0-2026-55956)

Vulnerability from cvelistv5 – Published: 2026-06-29 20:46 – Updated: 2026-06-30 13:25

Title

Apache Tomcat: Security constraints for default servlet ignored method

Summary

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-285 - Improper Authorization

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/dcjdcnnnww9hhdm01…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Tomcat	Affected: 11.0.0-M1 , ≤ 11.0.22 (semver) Affected: 10.1.0-M1 , ≤ 10.1.55 (semver) Affected: 9.0.0.M1 , ≤ 9.0.118 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 7.0.0 , ≤ 7.0.109 (semver) Unknown: 0 , < 7.0.0 (semver)

Credits

j0hndo (dohyun4466@gmail.com)

Show details on NVD website

JSON

To clipboard

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  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-55956",
    "datePublished": "2026-06-29T20:46:02.927Z",
    "dateReserved": "2026-06-17T18:36:32.030Z",
    "dateUpdated": "2026-06-30T13:25:31.049Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

RHSA-2026:43401

CVE-2026-41284 (GCVE-0-2026-41284)

CVE-2026-41293 (GCVE-0-2026-41293)

CVE-2026-42498 (GCVE-0-2026-42498)

CVE-2026-43512 (GCVE-0-2026-43512)

CVE-2026-43513 (GCVE-0-2026-43513)

CVE-2026-43514 (GCVE-0-2026-43514)

CVE-2026-43515 (GCVE-0-2026-43515)

CVE-2026-53404 (GCVE-0-2026-53404)

CVE-2026-55956 (GCVE-0-2026-55956)

Tags

Sightings

Nomenclature