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certfr-2026-avi-1218 — De multiples vulnérabilités ont été découvertes dans Apache Tomcat. Certaines d'entre elles permettent à un attaquant d…

certfr-2026-avi-1218

fkie_cve-2026-77791

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack.

This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.88 through 8.5.100. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

GHSA-9cg7-2q68-g3mq

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack.

This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121.

The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.88 through 8.5.100. Other unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

openSUSE-SU-2026:11906-1 — tomcat-9.0.122-1.1 on GA media

tomcat-9.0.122-1.1 on GA media

RHSA-2026:68257 — Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

tomcat: Apache Tomcat: Denial of Service due to uncontrolled resource allocation tomcat: Apache Tomcat: Improper Authentication due to principal lookup failure tomcat: Apache Tomcat: TLS implementations ignore Certificate Revocation Lists tomcat: Apache Tomcat: Cross-context authentication mix-up via Jakarta Authentication misconfiguration tomcat: Apache Tomcat: Authentication Bypass in WebSocket Endpoints tomcat: Apache Tomcat: Request smuggling vulnerability can lead to denial of service tomcat: Apache Tomcat: Denial of Service via busy wait during WebSocket close tomcat: Apache Tomcat: Denial of Service via AJP request tomcat: Apache Tomcat: Denial of Service via malformed HTTP/2 request tomcat: Apache Tomcat: Denial of Service due to lost asynchronous WebSocket write timeouts tomcat: Apache Tomcat: HTTP/2 request smuggling due to header mix-up tomcat: Apache Tomcat: WebSocket message smuggling via improper length handling

UBUNTU-CVE-2026-77791

Affected: Ubuntu:Pro:14.04:LTS: tomcat6, Ubuntu:Pro:14.04:LTS: tomcat7, Ubuntu:Pro:16.04:LTS: tomcat8, Ubuntu:Pro:16.04:LTS: tomcat7, Ubuntu:Pro:18.04:LTS: tomcat8, Ubuntu:Pro:18.04:LTS: tomcat9, Ubuntu:Pro:20.04:LTS: tomcat9, Ubuntu:Pro:22.04:LTS: tomcat9, Ubuntu:24.04:LTS: tomcat10, Ubuntu:24.04:LTS: tomcat9 and 3 more

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.88 through 8.5.100. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.