CVE-2026-8855

Published May 26, 2026

Last updated 4 days ago

Overview

Description
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).
Source
psirt@us.ibm.com
NVD status
Analyzed
Products
http_server

Risk scores

CVSS 3.1

Type
Primary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

psirt@us.ibm.com
CWE-94

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.