CVE-2026-101296

tomcat9: A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with...

CVE-2026-101296 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-101296, released October 21, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0063
50th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
tomcat · sles 15.6 9.0.123-150200.126.1 SUSE-SU-2026:5116-1 Nov 7, 2026
tomcat · sles 15.7 9.0.123-150200.126.1 SUSE-SU-2026:5116-1 Nov 7, 2026
tomcat10 · sles 15.6 10.1.61-150200.5.85.1 SUSE-SU-2026:5073-1 Nov 7, 2026
tomcat10 · sles 15.7 10.1.61-150200.5.85.1 SUSE-SU-2026:5073-1 Nov 7, 2026
tomcat9 · Debian 12.15 (bookworm) 9.0.70-2 DEBIAN-CVE-2026-101296 Oct 21, 2026
tomcat9 · Debian 13.5 (trixie) 9.0.70-2 DEBIAN-CVE-2026-101296 Oct 21, 2026
tomcat9 · Debian 14 9.0.70-2 DEBIAN-CVE-2026-101296 Oct 21, 2026

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