MEDIUM 6.5 Maven
Apache Tomcat: CLIENT_CERT authentication does not fail as expected
GHSA-24j9-x2wg-9qv6 · BIT-tomcat-2026-34500 · CVE-2026-34500
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Description
CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116.
Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-34500
- WEB https://github.com/apache/tomcat/commit/29b56a56ce9e7d044b6162a99af0f38529b3a208
- WEB https://github.com/apache/tomcat/commit/c13e60e732ea6d07087293a41ad1866c20848271
- WEB https://github.com/apache/tomcat/commit/ff589ab26e8250a2ca4286d986305318c033ff9f
- PACKAGE https://github.com/apache/tomcat
- WEB https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2
- WEB https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.54
- WEB https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.21
- WEB https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.117
- WEB http://www.openwall.com/lists/oss-security/2026/04/09/29
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