CVE-2026-34500

Published: Apr 09, 2026 Last Modified: Apr 14, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,5
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: low
Availability: none

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0005
Percentile
0,2th
Updated

EPSS Score Trend (Last 7 Days)

287

Improper Authentication

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability Access Control
Potential Impacts:
Read Application Data Gain Privileges Or Assume Identity Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: ICS/OT, Not Technology-Specific, Web Based
Likelihood of Exploit: High
View CWE Details
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone24:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version Range Affected
From 10.1.22 (inclusive)
To 10.1.54 (exclusive)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version Range Affected
From 9.0.92 (inclusive)
To 9.0.117 (exclusive)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone22:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone21:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone26:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone23:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version Range Affected
From 11.0.1 (inclusive)
To 11.0.21 (exclusive)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone25:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tomcat by Apache

Product Information
Vendor Apache
Product Tomcat
Version 11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
http://www.openwall.com/lists/oss-security/2026/04/09/29
http://www.openwall.com/lists/oss-security/2026/04/09/29
https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxj…
https://lists.apache.org/thread/7rcl4zdxryc8hy3htyfyxkbqpxjtfdl2