CVE-2026-8855

EUVD-2026-31905
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).
Code Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
ibmhttp_server
8.5.0.0 ≤
𝑥
< 8.5.5.30
ibmhttp_server
9.0.0.0 ≤
𝑥
< 9.0.5.29
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.ibm.com/support/pages/node/7274065