Apache Tomcat util accepted misconfigured CRLs
GHSA-4x29-79gh-6v8q · BIT-tomcat-2026-53434 · CVE-2026-53434
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Description
Detection of Error Condition Without Action vulnerability in Apache Tomcat when configuring Certificate Revocation List (CRLs) for a FFM based connector. If an FFM connector was configured with invalid CRLs, the invalid CRLs were ignored meaning invalid certificates could be accepted.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M7 through 10.1.55, from 9.0.83 through 9.0.118.
Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fixes the issue.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-53434
- WEB https://github.com/apache/tomcat/commit/7f8ecdbd930d8c5a7fae73aa0eec9124d919e2f5
- WEB https://github.com/apache/tomcat/commit/c48ac39c27f4494f8c96b9d56a487253e362d276
- WEB https://github.com/apache/tomcat/commit/feec60d6099727db6f911534f6a0f6926ebab070
- WEB https://lists.apache.org/thread/x510lbq0sfrd1qyo7q3r1mpllgpdcosk
- WEB http://www.openwall.com/lists/oss-security/2026/06/29/22
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