# CVE-2026-24734: Apache Tomcat Native, Apache Tomcat: OCSP revocation bypass

> CVE-2026-24734: Apache Tomcat Native, Apache Tomcat: OCSP revocation bypass. CVSS 7.4 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-24734
Last updated: 2026-07-15T14:17:21Z

- Published: 2026-02-17 18:53 UTC · Updated: 2026-07-15 14:17 UTC · Assigner: apache
- CVSS: 7.4 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS: 0.58%, 47th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-20

## 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.

## Affected vendors and products

- Apache Software Foundation: Apache Tomcat
- Apache Software Foundation: Apache Tomcat Native
- Red Hat: Red Hat Enterprise Linux 10
- Red Hat: Red Hat Enterprise Linux 6
- Red Hat: Red Hat Enterprise Linux 7
- Red Hat: Red Hat Enterprise Linux 8
- Red Hat: Red Hat Enterprise Linux 9
- Red Hat: Red Hat Hardened Images
- Red Hat: Red Hat JBoss Web Server 5
- Red Hat: Red Hat JBoss Web Server 6.2.1
- Red Hat: Red Hat JBoss Web Server 6.2 on RHEL 10
- Red Hat: Red Hat JBoss Web Server 6.2 on RHEL 8
- Red Hat: Red Hat JBoss Web Server 6.2 on RHEL 9

## Tracked companies

- [Bitbucket](https://rewindex.com/company/bitbucket.md)
- [Confluence](https://rewindex.com/company/confluence.md)
- [Jira](https://rewindex.com/company/jira.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-24734)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-24734)
- [https://lists.apache.org/thread/292dlmx3fz1888v6v16221kpozq56gml](https://lists.apache.org/thread/292dlmx3fz1888v6v16221kpozq56gml)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-24734 · Markdown: https://rewindex.com/cve/CVE-2026-24734.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-24734 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:50:13.628Z