Home

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.

PUBLISHED Reserved 2026-01-26 | Published 2026-02-17 | Updated 2026-02-17 | Assigner apache

Problem types

CWE-20 Improper Input Validation

Product status

Default status
unaffected

1.1.23 (semver)
affected

1.2.0 (semver)
affected

1.3.0 (semver)
affected

2.0.0 (semver)
affected

Default status
unaffected

11.0.0-M1 (semver)
affected

10.1.0-M7 (semver)
affected

9.0.83 (semver)
affected

Any version
unaffected

Credits

Joshua Rogers (@MegaManSec) finder

References

lists.apache.org/thread/292dlmx3fz1888v6v16221kpozq56gml vendor-advisory

cve.org (CVE-2026-24734)

nvd.nist.gov (CVE-2026-24734)

Download JSON