CVE-2026-101296CWE-304

CVE-2026-101296

published October 20, 2026

CVSS
—
EPSS
1%
Percentile
50.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00652 · 50.6th percentile
Weakness
CWE-304 · Missing Critical Step in Authentication
Published
2026-10-20T18:16Z
References (2)
https://lists.apache.org/thread.html/bl52b9go9ckoov8x4v3dt6rkm573cygd · [email protected]http://www.openwall.com/lists/oss-security/2026/10/20/26 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 22 OCT 03:28Z
    EPSS moved — → 1%
    epss
  • 20 OCT 13:45Z
    Apache Tomcat: JNDIRealm bind credential validation fails open for non-GSSAPI SASL mechanisms
    cvelistv5
  • 20 OCT 13:45Z
    Apache Tomcat: JNDIRealm bind credential validation fails open for non-GSSAPI SASL mechanisms
    cvelistv5