Authentication Bypass Affecting tomcat-lib package, versions <1:9.0.120-1.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
1.33% (70th percentile)

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  • Snyk IDSNYK-ALMALINUX8-TOMCATLIB-19896982
  • published18 Sept 2026
  • disclosed17 Sept 2026

Introduced: 17 Sep 2026

NewCVE-2026-43512  (opens in a new tab)
CWE-592  (opens in a new tab)

How to fix?

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

NVD Description

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

DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0. Older unsupported versions any also be affect

Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

CVSS Base Scores

version 3.1