CVE-2026-101296

Name	CVE-2026-101296
Description	A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.26, from 10.1.0-M1 through 10.1.60, from 9.0.0.M1 through 9.0.122. The following versions were EOL at the time the CVE was created but are known to be affected: from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.
Source	CVE (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 Bugs	1151847, 1151848

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tomcat10 (PTS)	bookworm	10.1.55-1~deb12u1	vulnerable
	bookworm (security)	10.1.60-1~deb12u1	vulnerable
	trixie (security), trixie	10.1.55-1~deb13u1	vulnerable
	forky, sid	10.1.60-1	vulnerable
tomcat11 (PTS)	trixie (security), trixie	11.0.22-1~deb13u1	vulnerable
	forky, sid	11.0.24-1	vulnerable
tomcat9 (PTS)	bookworm	9.0.70-2	fixed
	trixie	9.0.95-1	fixed
	forky, sid	9.0.122-1	fixed

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

Package	Type	Release	Fixed Version	Debian Bugs
tomcat10	source	(unstable)	(unfixed)	1151847
tomcat11	source	(unstable)	(unfixed)	1151848
tomcat9	source	(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/e43453fc04abb44f64faf571ca98af71aa3c20a1 (11.0.27)
https://github.com/apache/tomcat/commit/8fafc6f263311b7a0b7ce67477822175d1adf7ce (10.1.61)
https://github.com/apache/tomcat/commit/42827afa4d073ac3d9f8b3cc81b857aa455bf1e6 (9.0.123)