CVE-2026-8855

published 2026-05-26

CVE-2026-8855: IBM HTTP Server 8.5, and 9.0 is vulnerable to remote code execution and denial of service in configurations with TLS mutual authentication (client…

critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

IBM HTTP Server 8.5, and 9.0 is vulnerable to remote code execution and denial of service in configurations with TLS mutual authentication (client authentication).

Affected

4 ranges

Vendor	Product	Version range	Fixed in
ibm	http_server	—	—
ibm	http_server	8.5.0 – Interim Fix 002	—
ibm	http_server	>= 8.5.0.0 < 8.5.5.30	8.5.5.30
ibm	http_server	>= 9.0.0.0 < 9.0.5.29	9.0.5.29

CWE-94