CVE-2026-34500 Affecting tomcat9-lib package, versions <1:9.0.117-1.el10_2


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.45% (37th percentile)

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  • Snyk IDSNYK-ROCKY10-TOMCAT9LIB-17988186
  • published16 Jul 2026
  • disclosed9 Apr 2026

Introduced: 9 Apr 2026

CVE-2026-34500  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:10 tomcat9-lib to version 1:9.0.117-1.el10_2 or higher.
This issue was patched in RLSA-2026:25341.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat9-lib package and not the tomcat9-lib package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:10 relevant fixed versions and status.

CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116.

Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.

CVSS Base Scores

version 3.1