CVE Vulnerabilities

CVE-2026-101296

Missing Critical Step in Authentication

Published: Oct 20, 2026 | Modified: Oct 21, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
7.4 IMPORTANT
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Ubuntu
MEDIUM
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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.

Weakness

The product implements an authentication technique, but it skips a step that weakens the technique.

Affected Software

NameVendorStart VersionEnd Version
Red Hat Hardened ImagesRedHattomcat11-main-11.0.27-0.1.hum1*
Red Hat Hardened ImagesRedHattomcat10-main-10.1.61-0.1.hum1*
Tomcat6Ubuntuupstream*
Tomcat7Ubuntuupstream*
Tomcat8Ubuntuupstream*

References