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Product · Apache Software Foundation

Apache Tomcat

141 known vulnerabilities.

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  • Critical 9.1
    CVE-2026-86350 Public exploit

    Apache Tomcat: Regression in fix for CVE-2026-41293 can trigger request header mix-up

    Inconsistent interpretation of HTTP/2 requests ('HTTP Request/Response smuggling') vulnerability in Apache Tomcat caused by a regression in fix for CVE-2026-41293 can trigger request header mix-up. This issue affects Apache Tomcat: from 11.0.22 through 11.0.2…

  • Critical 9.8
    CVE-2026-76183 Public exploit

    Apache Tomcat: Bypass of security constraints for WebSocket endpoints

    Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 …

  • Critical 9.1
    CVE-2026-43515 Public exploit

    Apache Tomcat: Security constraints not correctly applied

    Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.11…

  • Critical 9.8
    CVE-2026-43512 Public exploit

    Apache Tomcat: Digest authenticator will authenticate any unknown user

    DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from…

  • Critical 9.8
    CVE-2026-41293 Public exploit

    Apache Tomcat: HTTP/2 request headers not validated

    Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27. Older, end of support versions may also …

  • Critical 9.1
    CVE-2026-29145 Public exploit

    Apache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail is disabled

    CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat, Apache Tomcat Native. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M7 through 10.1.52, from 9.0…

  • Critical 9.8
    CVE-2025-31651 Public exploit

    Apache Tomcat: Bypass of rules in Rewrite Valve

    Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectivel…

  • Critical 10.0
    CVE-2025-24813 Exploited Public exploit EPSS 100%

    Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT

    Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 t…

    KEV Apr 1, 2025
  • Critical 9.8
    CVE-2024-50379 Public exploit EPSS 32%

    Apache Tomcat: RCE due to TOCTOU issue in JSP compilation

    Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability during JSP compilation in Apache Tomcat permits an RCE on case insensitive file systems when the default servlet is enabled for write (non-default configuration). This issue affects Apache Tomcat…

  • Critical 9.8
    CVE-2024-52316 Public exploit

    Apache Tomcat: Authentication bypass when using Jakarta Authentication API

    Unchecked Error Condition vulnerability in Apache Tomcat. If Tomcat is configured to use a custom Jakarta Authentication (formerly JASPIC) ServerAuthContext component which may throw an exception during the authentication process without explicitly setting an…