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CVE-2026-73581 is an improper certificate-revocation validation flaw in Apache Tomcat. The OpenSSL and OpenSSL-FFM TLS implementations ignore certificate revocation lists when the applicable certificate uses a keystore. This can prevent Tomcat from enforcing configured CRL-based revocation status during TLS certificate validation. Affected versions are Tomcat 11.0.0-M1 through 11.0.25, 10.1.0-M1 through 10.1.58, and 9.0.0-M1 through 9.0.121. Tomcat 8.5.0 through 8.5.100 is also known to be affected, and other unsupported versions may be affected.
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No public exploit code observed for this vulnerability.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A TLS certificate-validation flaw in OpenSSL and OpenSSL-FFM handling that ignores certificate revocation lists for certificates stored in a keystore.
An Apache Tomcat certificate-revocation validation flaw affecting OpenSSL and OpenSSL-FFM when certificates are stored in a keystore.
An improper certificate-revocation-check vulnerability in Apache Tomcat: its OpenSSL and OpenSSL-FFM TLS implementations ignore certificate revocation lists (CRLs) when a certificate uses a keystore.
Apache Tomcat certificate-revocation validation flaw in which OpenSSL and OpenSSL-FFM TLS implementations ignore CRLs for certificates using a keystore.
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.