CVE-2026-59084

NameCVE-2026-59084
DescriptionInsufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely configure the EncryptInterceptor were not clearly documented. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.13 through 9.0.119, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120 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)
Debian Bugs1142454, 1142455

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, sid10.1.55-1vulnerable
tomcat11 (PTS)trixie (security), trixie11.0.22-1~deb13u1vulnerable
forky, sid11.0.24-1vulnerable
tomcat9 (PTS)bullseye9.0.43-2~deb11u10vulnerable
bullseye (security)9.0.118-0+deb11u1fixed
bookworm9.0.70-2fixed
trixie9.0.95-1fixed
forky, sid9.0.118-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
tomcat10source(unstable)(unfixed)1142455
tomcat11source(unstable)(unfixed)1142454
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/57e80e9b8bb7cb563929db47fd24fe787251f478 (11.0.24)
https://github.com/apache/tomcat/commit/79466463f18cf57704513a5aaa93961bf14c9ef5 (10.1.57)
https://github.com/apache/tomcat/commit/617d7275782bf58b45f6b7ea82c2edf16660e0b3 (9.0.120)

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