All vulnerabilities
CVE-2026-101296

Apache Tomcat: JNDIRealm bind credential validation fails open for non-GSSAPI SASL mechanisms

Apache Software Foundation Apache TomcatWeb servers
Open in ThreatlineRecord JSON
CVSS
9.1Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.65%Chance of exploitation activity in the next 30 days, higher than 50% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published20 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 5

  • Apache Tomcataffected: 11.0.0-M1 through 11.0.26CVE List
  • Apache Tomcataffected: 10.1.0-M1 through 10.1.60CVE List
  • Apache Tomcataffected: 9.0.0.M1 through 9.0.122CVE List
  • Apache Tomcataffected: 8.5.0 through 8.5.100CVE List
  • Apache Tomcataffected: 7.0.0 through 7.0.109CVE List

References 1