CRITICAL 9.1 Maven
Apache Tomcat - Security constraints not correctly applied
GHSA-5m62-pw8w-7w9f · BIT-tomcat-2026-43515 · CVE-2026-43515
Published · Modified
Description
Versions Affected:
Apache Tomcat 11.0.0-M1 to 11.0.21
Apache Tomcat 10.1.0-M1 to 10.1.54
Apache Tomcat 9.0.0.M1 to 9.0.117
Older, unsupported versions may also be affected
Description:
When multiple security constraints defined an HTTP method constraint for
the same extension pattern, only the first method constraint was applied.
Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- Upgrade to Apache Tomcat 11.0.22 or later
- Upgrade to Apache Tomcat 10.1.55 or later
- Upgrade to Apache Tomcat 9.0.118 or later
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-43515
- WEB https://github.com/apache/tomcat/commit/276087d9c7abbcecc6c4fb4e4b08cf64780c6e36
- WEB https://github.com/apache/tomcat/commit/c621317382682206fb58ab92ebd3e1b6fdd10ce9
- WEB https://github.com/apache/tomcat/commit/db919ff9912b4d61d1b702a1342b8bde39270031
- PACKAGE https://github.com/apache/tomcat
- WEB https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb
- WEB https://tomcat.apache.org/security-10.html
- WEB https://tomcat.apache.org/security-11.html
- WEB https://tomcat.apache.org/security-9.html
- WEB http://www.openwall.com/lists/oss-security/2026/05/12/11
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