GHSA-24j9-x2wg-9qv6

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GHSA-24j9-x2wg-9qv6

Summary: Apache Tomcat: CLIENT_CERT authentication does not fail as expected

Details: 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: https://nvd.nist.gov/vuln/detail/CVE-2026-34500, https://github.com/apache/tomcat/commit/29b56a56ce9e7d044b6162a99af0f38529b3a208, https://github.com/apache/tomcat/commit/c13e60e732ea6d07087293a41ad1866c20848271, https://github.com/apache/tomcat/commit/ff589ab26e8250a2ca4286d986305318c033ff9f, https://github.com/apache/tomcat, https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2, https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.54, https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.21, https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.117, http://www.openwall.com/lists/oss-security/2026/04/09/29