Medium5.3Red Hat Linux

Medium [CVE-2025-66614] Client certificate verification bypass due to virtual host mapping

This medium-severity Red Hat Linux advisory covers CVE-2025-66614 affecting Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 8.

CVE-2025-66614 Published Feb 17, 2026

CVE-2025-66614

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Client certificate verification bypass due to virtual host mapping. Red Hat rates this moderate (CVSS 5.3).

Weakness: CWE-1289. Affected package(s): tomcat, jws6-tomcat, tomcat10-main, tomcat11-main.

Resolved in Red Hat advisory RHSA-2026:12195 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.

Affected versions

tomcat
jws6-tomcat-0:10.1.49-10.redhat_00008.1.el10jws
tomcat10-main-10.1.54-1.hum1
jws6-tomcat-0:10.1.49-10.redhat_00008.1.el9jws
jws6-tomcat-0:10.1.49-10.redhat_00008.1.el8jws
tomcat11-main-11.0.21-0.1.hum1

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:12195

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:12195 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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