Apache Tomcat - AJP secret compared in non-constant time

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: The AJP secret was compared in non-constant time allowing an attacker on the local network to mount a timing...

Apache Tomcat - HTTP/2 request headers not validated

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: HTTP/2 request headers were not validated which may have triggered unexpected application behaviour if the...

EUVD-2026-29515

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication 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 9.0.2 through 9.0.117, from 8.5.24 through 8.5.100, from 7.0.83 through...

GHSA-5M62-PW8W-7W9F Apache Tomcat - Security constraints not correctly applied

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: When multiple security constraints defined an HTTP method constraint for the same extension pattern, only the...

GHSA-9M89-8FRQ-C98C Apache Tomcat - AJP secret compared in non-constant time

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: The AJP secret was compared in non-constant time allowing an attacker on the local network to mount a timing...

EUVD-2026-29513

Allocation of Resources Without Limits or Throttling 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. Older, unsupported versions may also be affected. Users are recommended to upgrade ...

GHSA-R29C-68GH-XP6X Apache Tomcat - HTTP/2 request headers not validated

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: HTTP/2 request headers were not validated which may have triggered unexpected application behaviour if the...

GHSA-5MP6-JRQ3-R938 Apache Tomcat: LockOutRealm treats user names as case-sensitive

Improper Handling of Case Sensitivity vulnerability in LockOutRealm 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 7.0.0 through 7.0.109. Older unsupported versions...

EUVD-2026-29514

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 be affected. Users are recommended to...

GHSA-GX5V-XP9W-J4CG Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: No limit was enforced on the request body for WebDAV LOCK or PROPFIND requests which were available to...

Apache Tomcat - Security constraints not correctly applied

Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: When multiple security constraints defined an HTTP method constraint for the same extension pattern, only the...

Information Disclosure org.apache.tomcat:tomcat-catalina Dependency in Jira Service Management Data Center

This High severity Information Disclosure vulnerability was introduced in versions 5.15.2, 5.16.0, 5.17.0, 10.0.1, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0, 10.7.1, 11.0.0, 11.1.0, 11.2.0, and 11.3.0 of Jira Service Management Data Center. This Information Disclosure vulnerability, with a...

Improper Validation of Syntactic Correctness of Input

Overview tomcat:tomcat-coyote is a discontinued coyote plugin for Tomcat. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentially compromise the...

Improper Validation of Syntactic Correctness of Input

Overview org.apache.tomcat:tomcat-coyote is a Tomcat Connectors and HTTP parser. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentially compromi...

Improper Validation of Syntactic Correctness of Input

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentially...

Improper Validation of Syntactic Correctness of Input

Overview org.apache.tomcat:coyote is a maven plugin for Tomcat Connectors and HTTP parser. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentiall...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the WebDAV LOCK and PROPFIND XML request bodies. An attacker can cause...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the WebDAV LOCK and PROPFIND XML request bodies. An attacker can cause excessive resource consumption by...

Exposure of Private Personal Information to an Unauthorized Actor

Overview Affected versions of this package are vulnerable to Exposure of Private Personal Information to an Unauthorized Actor in WebSocket client during authentication. An attacker can obtain sensitive HTTP authentication headers by initiating a WebSocket handshake with a malicious host...

Exposure of Private Personal Information to an Unauthorized Actor

Overview org.apache.tomcat:tomcat-websocket is a Tomcat WebSocket JSR356 implementation. Affected versions of this package are vulnerable to Exposure of Private Personal Information to an Unauthorized Actor in WebSocket client during authentication. An attacker can obtain sensitive HTTP...