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.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade tomcat-admin-webappsUpgrade tomcat-webappsUpgrade tomcat-jsvcUpgrade tomcat-el-3.0-apiUpgrade tomcat-servlet-4.0-apiUpgrade tomcatUpgrade tomcat-docs-webappUpgrade 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 10.1.54Upgrade Apache Tomcat to 9.0.117 | 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 jws6-tomcat-selinuxUpgrade jws6-tomcat-libUpgrade tomcat9Upgrade jws6-tomcat-el-5.0-apiUpgrade tomcat9-docs-webappUpgrade tomcat9-el-3.0-apiUpgrade jws6-tomcat-admin-webappsUpgrade jws6-tomcat-webappsUpgrade tomcat9-webappsUpgrade tomcat9-libUpgrade jws6-tomcat-javadocUpgrade jws6-tomcat-docs-webappUpgrade jws6-tomcat-servlet-6.0-apiUpgrade tomcat9-admin-webappsUpgrade jws6-tomcatUpgrade tomcat9-servlet-4.0-apiUpgrade tomcat9-jsp-2.3-api | May 28, 2026 | Apr 9, 2026 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub