CVE-2026-34500

Published: Apr 9, 2026Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Exploitability: 2.2 / Impact: 4.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

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.

Affected (16)

Products: Apache: Tomcat

Apache

1 product

Tomcat

Configuration A

16 vulnerable

Vulnerable Software	Affected Versions
Apache Tomcat	From 10.1.22 to 10.1.54
Apache Tomcat	From 11.0.1 to 11.0.21
Apache Tomcat	From 9.0.92 to 9.0.117
Apache Tomcat	Version 11.0.0 milestone14
Apache Tomcat	Version 11.0.0 milestone15
Apache Tomcat	Version 11.0.0 milestone16
Apache Tomcat	Version 11.0.0 milestone17
Apache Tomcat	Version 11.0.0 milestone18
Apache Tomcat	Version 11.0.0 milestone19
Apache Tomcat	Version 11.0.0 milestone20
Apache Tomcat	Version 11.0.0 milestone21
Apache Tomcat	Version 11.0.0 milestone22
Apache Tomcat	Version 11.0.0 milestone23
Apache Tomcat	Version 11.0.0 milestone24
Apache Tomcat	Version 11.0.0 milestone25
Apache Tomcat	Version 11.0.0 milestone26

Related CWEs

CWE-287

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (2)

https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2

Source: security@apache.org

Vendor Advisory

http://www.openwall.com/lists/oss-security/2026/04/09/29

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

Timeline

No history available yet.