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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade tomcat-admin-webappsUpgrade tomcat-webappsUpgrade tomcat-docs-webappUpgrade tomcat-jsvcUpgrade tomcatUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-el-3.0-apiUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-lib | May 20, 2026 | May 20, 2026 |
| Apache Tomcat | — | Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 11.0.21Upgrade Apache Tomcat to 9.0.117Upgrade Apache Tomcat to 10.1.54 | Apr 10, 2026 | Apr 9, 2026 |
| Debian | — | Upgrade tomcat9Upgrade tomcat11Upgrade tomcat10 | Apr 13, 2026 | Apr 13, 2026 |
| Redhat_linux | — | Upgrade jws6-tomcat-jsp-3.1-apiUpgrade tomcat9-webappsUpgrade tomcat9-docs-webappUpgrade jws6-tomcat-admin-webappsUpgrade jws6-tomcat-webappsUpgrade jws6-tomcat-selinuxUpgrade jws6-tomcat-libUpgrade jws6-tomcat-el-5.0-apiUpgrade tomcat9Upgrade tomcat9-el-3.0-apiUpgrade tomcat9-admin-webappsUpgrade tomcat9-jsp-2.3-apiUpgrade tomcat9-servlet-4.0-apiUpgrade jws6-tomcatUpgrade jws6-tomcat-javadocUpgrade jws6-tomcat-servlet-6.0-apiUpgrade jws6-tomcat-docs-webappUpgrade tomcat9-lib | May 28, 2026 | Apr 9, 2026 |
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