Authentication Bypass Affecting tomcat9 package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.14% (34th percentile)

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  • Snyk IDSNYK-UBUNTU2404-TOMCAT9-16877651
  • published1 Jun 2026
  • disclosed12 May 2026

Introduced: 12 May 2026

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

How to fix?

There is no fixed version for Ubuntu:24.04 tomcat9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat9 package and not the tomcat9 package as distributed by Ubuntu. See How to fix? for Ubuntu:24.04 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