GitHub Advisoryadvisory · Maven

GHSA-mgp5-rv84-w37q Apache Tomcat has an Improper Input Validation vulnerability

HIGH Published 2026-02-17 Modified 2026-03-19 Official page ↗
Aliases
CVE-2026-24734
Ecosystem
Maven
Packages
org.apache.tomcat:tomcat-coyote, org.apache.tomcat.embed:tomcat-embed-core
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses
CWE-20
Reviewed
2026-03-19

Affected packages

• Maven org.apache.tomcat:tomcat-coyote: >= 11.0.0-M1, < 11.0.18 → fixed in 11.0.18 • Maven org.apache.tomcat:tomcat-coyote: >= 10.1.0-M7, < 10.1.52 → fixed in 10.1.52 • Maven org.apache.tomcat:tomcat-coyote: >= 9.0.83, < 9.0.115 → fixed in 9.0.115 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 11.0.0-M1, < 11.0.18 → fixed in 11.0.18 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 10.1.0-M7, < 10.1.52 → fixed in 10.1.52 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 9.0.83, < 9.0.115 → fixed in 9.0.115

Description

Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. When using an OCSP responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification or freshness checks on the OCSP response which could allow certificate revocation to be bypassed. This issue affects Apache Tomcat Native:  from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat: from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114. The following versions were EOL at the time the CVE was created but are known to be affected: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected. Apache Tomcat Native users are recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue. Apache Tomcat users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which fix the issue.

Related

Alias · CVE (1)

  • CVE-2026-24734 Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. vulnerability

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References