Improper input validation in Apache Tomcat
CVE-2026-24734
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 re…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.005 (39.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Apache Tomcat — versions 10.1.0, 11.0.0
- Apache Tomcat_native
- Apache Software Foundation Tomcat — versions 11.0.0-M1, 10.1.0-M7, 9.0.83
- Apache Software Foundation Tomcat Native — versions 1.1.23, 1.2.0, 1.3.0
Weakness classification (CWE)
References
- security@apache.org (vendor-advisory, Mailing List, Issue Tracking, Vendor Advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-24734?
- CVE-2026-24734 is a high-severity vulnerability in Apache Tomcat, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-02-17.
- How severe is CVE-2026-24734?
- High severity. CVSS v3 base score is 7.5 out of 10.