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CVE-2026-53434 is a CWE-390 vulnerability in Apache Tomcat's handling of certificate revocation list (CRL) configuration for FFM-based connectors. An invalid CRL configuration does not trigger the expected failure condition, allowing the connector to continue without acting on the configuration error. Affected releases are Tomcat 11.0.0-M1 through 11.0.22, 10.1.0-M7 through 10.1.55, and 9.0.83 through 9.0.118.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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24 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability referenced in a Nutanix AOS security notice/plugin, but no specific technical details are provided in the content.
A critical man-in-the-middle vulnerability in Atlassian Confluence that could allow attackers to eavesdrop on connections.
A critical Apache Tomcat vulnerability involving invalid CRL configuration that could allow attackers to bypass security restrictions.
A CWE-390 detection-of-error-condition-without-action flaw in Apache Tomcat's FFM-based connector CRL configuration handling. Invalid CRL configuration does not cause the connector configuration to fail.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.