CVE-2026-24734

Description

Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat.When using an OCSP responder, Tomcat Native (and Tomcats 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.

Risk Information

Base Score

7.5

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Score

Exploitation Probability

0.026

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2026-24734 are fixed in Apache Tomcat 11.0.18	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache Tomcat 10.1.52	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache Tomcat 9.0.115	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache-tomcat-coyate 11.0.18	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache-tomcat-coyate 10.1.52	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache-tomcat-coyate 9.0.115	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache - tomcat-embed-core 11.0.18	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache - tomcat-embed-core 10.1.52	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache - tomcat-embed-core 9.0.115	Windows
Vulnerabilities CVE-2026-24734 are fixed in Apache-tomcat-coyate for Linux 11.0.18	Linux
Vulnerabilities CVE-2026-24734 are fixed in Apache-tomcat-coyate for Linux 10.1.52	Linux
Vulnerabilities CVE-2026-24734 are fixed in Apache-tomcat-coyate for Linux 9.0.115	Linux
Vulnerabilities CVE-2026-24734 are fixed in Apache - tomcat-embed-core for Linux 11.0.18	Linux
Vulnerabilities CVE-2026-24734 are fixed in Apache - tomcat-embed-core for Linux 10.1.52	Linux
Vulnerabilities CVE-2026-24734 are fixed in Apache - tomcat-embed-core for Linux 9.0.115	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234