CVE-2026-53434: Apache Tomcat util accepted misconfigured CRLs
(updated )
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
- github.com/advisories/GHSA-4x29-79gh-6v8q
- github.com/apache/tomcat/commit/7f8ecdbd930d8c5a7fae73aa0eec9124d919e2f5
- github.com/apache/tomcat/commit/c48ac39c27f4494f8c96b9d56a487253e362d276
- github.com/apache/tomcat/commit/feec60d6099727db6f911534f6a0f6926ebab070
- lists.apache.org/thread/x510lbq0sfrd1qyo7q3r1mpllgpdcosk
- nvd.nist.gov/vuln/detail/CVE-2026-53434
Code Behaviors & Features
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