Common Weakness Enumeration
CWE-185
Allowed-with-ReviewIncorrect Regular Expression
Abstraction: Class · Status: Draft
The product specifies a regular expression in a way that causes data to be improperly matched or compared.
70 vulnerabilities reference this CWE, most recent first.
CVE-2026-56021 (GCVE-0-2026-56021)
Vulnerability from cvelistv5 – Published: 2026-06-18 16:11 – Updated: 2026-06-24 19:54
VLAI
EPSS
VEX
Title
Webmin information disclosure via regex pattern
Summary
Webmin allows unauthenticated attackers to read the contents of any file ending in .conf within module directories, due to a bypassable regex pattern.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://webmin.com/security/#webmin-prior-to-2641 | release-notes |
| https://github.com/webmin/webmin/releases/tag/2.641 | release-notes |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | |
| https://www.cve.org/CVERecord?id=CVE-2026-56021 | vdb-entry |
Date Public
2026-06-18 00:00
Credits
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CVE-2026-48147 (GCVE-0-2026-48147)
Vulnerability from cvelistv5 – Published: 2026-05-27 17:14 – Updated: 2026-05-27 18:32
VLAI
EPSS
VEX
Title
Budibase: Unanchored Regex in `matchers.ts` Allows CSRF Bypass via Query String Injection in Budibase Worker
Summary
Budibase is an open-source low-code platform. Prior to 3.35.4, the buildMatcherRegex() / matches() functions in packages/backend-core/src/middleware/matchers.ts route patterns are compiled into unanchored regular expressions and tested against ctx.request.url, which includes the full query string. The CSRF middleware in the Budibase Worker uses this matching system to decide whether to skip CSRF token validation. An unauthenticated attacker can forge state-changing cross-origin requests against any Worker API endpoint by injecting a public route pattern into the query string, causing the CSRF middleware to skip token validation entirely. This allows actions such as sending admin invites, modifying global configuration, and managing users without a valid CSRF token. This vulnerability is fixed in 3.35.4.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Budibase/budibase/security/adv… | x_refsource_CONFIRM |
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CVE-2026-47674 (GCVE-0-2026-47674)
Vulnerability from cvelistv5 – Published: 2026-05-28 15:29 – Updated: 2026-06-02 18:15
VLAI
EPSS
VEX
Title
Hono: IP Restriction bypasses static deny rules for non-canonical IPv6
Summary
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6 representations of an address already listed in a static rule — such as compressed forms, explicit-zero forms, or hex-notation IPv4-mapped addresses — do not match the normalized rule entry, causing the rule to be silently skipped. This vulnerability is fixed in 4.12.21.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/honojs/hono/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-45065 (GCVE-0-2026-45065)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:43 – Updated: 2026-07-14 19:51
VLAI
EPSS
VEX
Title
Symfony: UrlGenerator Route-Requirement Bypass via Unanchored Regex Alternation → Off-Site //host URL Injection
Summary
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, UrlGenerator validates route parameters against a pattern built as ^ plus the raw requirement plus $; with ungrouped alternations, middle alternatives match as unanchored substrings, allowing a value such as //evil.com to satisfy a common locale requirement and generate a protocol-relative off-site URL. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/symfony/symfony/security/advis… | x_refsource_CONFIRM |
| https://github.com/symfony/symfony/releases/tag/v5.4.52 | x_refsource_MISC |
| https://github.com/symfony/symfony/releases/tag/v6.4.40 | x_refsource_MISC |
| https://github.com/symfony/symfony/releases/tag/v7.4.12 | x_refsource_MISC |
| https://github.com/symfony/symfony/releases/tag/v8.0.12 | x_refsource_MISC |
Impacted products
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"title": "Symfony: UrlGenerator Route-Requirement Bypass via Unanchored Regex Alternation \u2192 Off-Site //host URL Injection"
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CVE-2026-39350 (GCVE-0-2026-39350)
Vulnerability from cvelistv5 – Published: 2026-04-15 22:42 – Updated: 2026-04-16 12:04
VLAI
EPSS
VEX
Title
Istio AuthorizationPolicy Incorrect Regex Matching of Dots in serviceAccounts Fields Allows Policy Bypass
Summary
Istio is an open platform to connect, manage, and secure microservices. In versions 1.25.0 through 1.27.8, 1.28.0 through 1.28.5, 1.29.0, and 1.29.1, the serviceAccounts and notServiceAccounts fields in AuthorizationPolicy incorrectly interpret dots (.) as a regular expression matcher. Because . is a valid character in a service account name, an AuthorizationPolicy ALLOW rule targeting a service account such as cert-manager.io also matches cert-manager-io, cert-managerXio, etc. A DENY rule targeting the same name fails to block those variants. Fixes are available in versions 1.29.2, 1.28.6, and 1.27.9.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/istio/istio/security/advisorie… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-33418 (GCVE-0-2026-33418)
Vulnerability from cvelistv5 – Published: 2026-03-24 13:25 – Updated: 2026-03-24 15:11
VLAI
EPSS
VEX
Title
@dicebear/converter ensureSize() Vulnerable to SVG Dimension Capping Bypass via XML Comment Injection
Summary
DiceBear is an avatar library for designers and developers. Prior to version 9.4.2, the `ensureSize()` function in `@dicebear/converter` used a regex-based approach to rewrite SVG `width`/`height` attributes, capping them at 2048px to prevent denial of service. This size capping could be bypassed by crafting SVG input that causes the regex to match a non-functional occurrence of `<svg` before the actual SVG root element. When the SVG is subsequently rendered via `@resvg/resvg-js` on the Node.js code path, it renders at the attacker-specified dimensions, potentially causing out-of-memory crashes. In version 9.4.2, the regex-based approach has been replaced with XML-aware processing using `fast-xml-parser` to correctly identify and modify the SVG root element's attributes. Additionally, a `fitTo` constraint has been added to the `renderAsync` call as defense-in-depth, ensuring the rendered output is always bounded regardless of SVG content.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-185 - Incorrect Regular Expression
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/dicebear/dicebear/security/adv… | x_refsource_CONFIRM |
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CVE-2026-33347 (GCVE-0-2026-33347)
Vulnerability from cvelistv5 – Published: 2026-03-24 19:26 – Updated: 2026-03-26 19:52
VLAI
EPSS
VEX
Title
league/commonmark has an embed extension allowed_domains bypass
Summary
league/commonmark is a PHP Markdown parser. From version 2.3.0 to before version 2.8.2, the DomainFilteringAdapter in the Embed extension is vulnerable to an allowlist bypass due to a missing hostname boundary assertion in the domain-matching regex. An attacker-controlled domain like youtube.com.evil passes the allowlist check when youtube.com is an allowed domain. This issue has been patched in version 2.8.2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/thephpleague/commonmark/securi… | x_refsource_CONFIRM |
| https://github.com/thephpleague/commonmark/commit… | x_refsource_MISC |
| https://github.com/thephpleague/commonmark/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| thephpleague | commonmark |
Affected:
>= 2.3.0, < 2.8.2
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CVE-2026-27895 (GCVE-0-2026-27895)
Vulnerability from cvelistv5 – Published: 2026-03-17 23:51 – Updated: 2026-03-18 19:55
VLAI
EPSS
VEX
Title
LAM has incorrect regular expression in PDF export component that allows user to upload files of any type
Summary
LDAP Account Manager (LAM) is a webfrontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory. Prior to version 9.5, the PDF export component does not correctly validate uploaded file extensions. This way any file type (including .php files) can be uploaded. With GHSA-w7xq-vjr3-p9cf, an attacker can achieve remote code execution as the web server user. Version 9.5 fixes the issue. Although upgrading is recommended, a workaround would be to make /var/lib/ldap-account-manager/config read-only for the web-server user.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-185 - Incorrect Regular Expression
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/LDAPAccountManager/lam/securit… | x_refsource_CONFIRM |
| https://github.com/LDAPAccountManager/lam/securit… | x_refsource_MISC |
| https://github.com/LDAPAccountManager/lam/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| LDAPAccountManager | lam |
Affected:
< 9.5
|
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CVE-2026-25896 (GCVE-0-2026-25896)
Vulnerability from cvelistv5 – Published: 2026-02-20 20:57 – Updated: 2026-07-15 01:15
VLAI
EPSS
VEX
Title
fast-xml-parser has an entity encoding bypass via regex injection in DOCTYPE entity names
Summary
fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. From 4.1.3to before 5.3.5, a dot (.) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing an attacker to shadow built-in XML entities (<, >, &, ", ') with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered. This vulnerability is fixed in 5.3.5.
Severity
9.3 (Critical)
7.1 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://github.com/NaturalIntelligence/fast-xml-p… | x_refsource_CONFIRM |
| https://github.com/NaturalIntelligence/fast-xml-p… | x_refsource_MISC |
| https://github.com/NaturalIntelligence/fast-xml-p… | x_refsource_MISC |
| https://github.com/NaturalIntelligence/fast-xml-p… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-25896 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2441501 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:7110 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7128 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6174 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6802 | vendor-advisoryx_refsource_REDHAT |
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| NaturalIntelligence | fast-xml-parser |
Affected:
>= 5.0.0, < 5.3.5
Affected: >= 4.1.3, < 4.5.4 |
|
| Red Hat | Red Hat Advanced Cluster Security for Kubernetes 4.8 |
Unaffected:
1775594119 , < *
(rpm)
cpe:/a:redhat:advanced_cluster_security:4.8::el8 |
|
| Red Hat | Red Hat Advanced Cluster Security for Kubernetes 4.9 |
Unaffected:
1775594284 , < *
(rpm)
cpe:/a:redhat:advanced_cluster_security:4.9::el8 |
|
| Red Hat | Red Hat Developer Hub 1.8 |
Unaffected:
1774545605 , < *
(rpm)
cpe:/a:redhat:rhdh:1.8::el9 |
|
| Red Hat | Red Hat Developer Hub 1.9 |
Unaffected:
1775140647 , < *
(rpm)
cpe:/a:redhat:rhdh:1.9::el9 |
|
| Red Hat | Migration Toolkit for Applications 8 |
cpe:/a:redhat:migration_toolkit_applications:8 |
|
| Red Hat | Red Hat Openshift Data Foundation 4 |
cpe:/a:redhat:openshift_data_foundation:4 |
|
| Red Hat | Red Hat OpenShift GitOps |
cpe:/a:redhat:openshift_gitops:1 |
|
| Red Hat | Red Hat OpenShift Virtualization 4 |
cpe:/a:redhat:container_native_virtualization:4 |
|
| Red Hat | Red Hat Satellite 6 |
cpe:/a:redhat:satellite:6 |
|
| Red Hat | Self-service automation portal 2 |
cpe:/a:redhat:ansible_portal:2 |
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CVE-2026-25542 (GCVE-0-2026-25542)
Vulnerability from cvelistv5 – Published: 2026-04-21 16:05 – Updated: 2026-05-22 16:06
VLAI
EPSS
VEX
Title
Tekton Pipelines: VerificationPolicy regex pattern bypass via substring matching
Summary
Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 0.43.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, trusted resources verification policies match a resource source string (refSource.URI) against spec.resources[].pattern using regexp.MatchString. In Go, regexp.MatchString reports a match if the pattern matches anywhere in the string, so common unanchored patterns (including examples in tekton documentation) can be bypassed by attacker-controlled source strings that contain the trusted pattern as a substring. This can cause an unintended policy match and change which verification mode/keys apply. Versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1 fix the issue.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-185 - Incorrect Regular Expression
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/tektoncd/pipeline/security/adv… | x_refsource_CONFIRM |
| https://github.com/tektoncd/pipeline/commit/b8905… | x_refsource_MISC |
Impacted products
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Mitigation MIT-45
Implementation
Strategy: Refactoring
Regular expressions can become error prone when defining a complex language even for those experienced in writing grammars. Determine if several smaller regular expressions simplify one large regular expression. Also, subject the regular expression to thorough testing techniques such as equivalence partitioning, boundary value analysis, and robustness. After testing and a reasonable confidence level is achieved, a regular expression may not be foolproof. If an exploit is allowed to slip through, then record the exploit and refactor the regular expression.
CAPEC-15: Command Delimiters
An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or denylist input validation, as opposed to allowlist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or denylist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
CAPEC-6: Argument Injection
An attacker changes the behavior or state of a targeted application through injecting data or command syntax through the targets use of non-validated and non-filtered arguments of exposed services or methods.
CAPEC-79: Using Slashes in Alternate Encoding
This attack targets the encoding of the Slash characters. An adversary would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the adversary many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.