CVE-2026-93446

NameCVE-2026-93446
DescriptionIncomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently. This issue affects Apache Tomcat: from 11.0.0-M21 through 11.0.26, from 10.1.25 through 10.1.60, from 9.0.90 through 9.0.122. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tomcat10 (PTS)bookworm, bookworm (security)10.1.55-1~deb12u1vulnerable
trixie (security), trixie10.1.55-1~deb13u1vulnerable
forky, sid10.1.60-1vulnerable
tomcat11 (PTS)trixie (security), trixie11.0.22-1~deb13u1vulnerable
forky, sid11.0.24-1vulnerable
tomcat9 (PTS)bookworm9.0.70-2fixed
trixie9.0.95-1fixed
forky, sid9.0.122-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tomcat10source(unstable)(unfixed)
tomcat11source(unstable)(unfixed)
tomcat9source(unstable)9.0.70-2

Notes

Starting with 9.0.70-2 src:tomcat9 no longer ships the server stack, using that as the fixed version
https://github.com/apache/tomcat/commit/e49e0c47ea925ad9442ba933a144ea62433d6a06 (11.0.27)
https://github.com/apache/tomcat/commit/ccbe01a52a9b255ad98e71b5bed76ed10a099503 (10.1.61)
https://github.com/apache/tomcat/commit/02166d1c7c32973685734ef132e56eb232605cc5 (9.0.123)

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