Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-34500

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
09/04/2026
Last modified:
14/04/2026

Description

CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat.<br /> <br /> 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.<br /> <br /> Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): Low
Availability (A): None

Base Score 3.x
6.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 9.0.92 (including) 9.0.117 (excluding)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 10.1.22 (including) 10.1.54 (excluding)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* 11.0.1 (including) 11.0.21 (excluding)
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:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools