CVE-2026-34500

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-34500
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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2 Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/09/29 Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone21:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone22:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone23:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone24:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone25:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone26:*:*:*:*:*:*
History

14 Apr 2026, 12:43

Type Values Removed Values Added
First Time Apache
Apache tomcat
References () https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2 - () https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2 - Vendor Advisory
References () http://www.openwall.com/lists/oss-security/2026/04/09/29 - () http://www.openwall.com/lists/oss-security/2026/04/09/29 - Mailing List, Third Party Advisory
CPE cpe:2.3:a:apache:tomcat:11.0.0:milestone24:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone21:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone22:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone25:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone26:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:11.0.0:milestone23:*:*:*:*:*:*
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*

10 Apr 2026, 15:16

Type Values Removed Values Added
CWE CWE-287
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.5

10 Apr 2026, 00:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/04/09/29 -

09 Apr 2026, 20:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-09 20:16

Updated : 2026-04-14 12:43

NVD link : CVE-2026-34500

Mitre link : CVE-2026-34500

CVE.ORG link : CVE-2026-34500

JSON object : View

Products Affected

apache

  • tomcat
CWE
CWE-287

Improper Authentication