Missing Critical Step in Authentication Affecting tomcat package, versions <1:9.0.120-1.el8_10


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
2.86% (87th percentile)

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  • Snyk IDSNYK-ORACLE8-TOMCAT-19920842
  • published18 Sept 2026
  • disclosed29 Jun 2026

Introduced: 29 Jun 2026

CVE-2026-55957  (opens in a new tab)
CWE-304  (opens in a new tab)

How to fix?

Upgrade Oracle:8 tomcat to version 1:9.0.120-1.el8_10 or higher.
This issue was patched in ELSA-2026-68677.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat package and not the tomcat package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.4, from 10.1.0-M1 through 10.1.36, from 9.0.0.M1 through 9.0.100, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.

Users are recommended to upgrade to version 11.0.5, 10.1.37 or 9.0.101, which fixes the issue.

CVSS Base Scores

version 3.1