GHSA-24j9-x2wg-9qv6
Apache Tomcat: CLIENT_CERT authentication does not fail as expected
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.apache.tomcat:tomcat-coyote-ffm | >= 9.0.92, < 9.0.117 | 9.0.117 |
| Maven | org.apache.tomcat:tomcat-coyote-ffm | >= 10.1.22, < 10.1.54 | 10.1.54 |
| Maven | org.apache.tomcat:tomcat-coyote-ffm | >= 11.0.0-M14, < 11.0.21 | 11.0.21 |
Details
As written in the advisory (Markdown source, shown as plain text).
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
External links from the advisory. They lead to third-party sites.
- 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