Vulnerability intelligence

CVE-2026-101296

Apache Software Foundation Apache Tomcat CWE-304

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.

CVSS Score

9.1

Critical

EPSS — Exploit Probability

—

Awaiting FIRST.org data · checked 2026-10-21

Exploitation

Not in CISA KEV

KEV does not include every exploited vulnerability

Remediation

unknown

Check vendor advisories