by Kastro
Paper/Archive/CVE-2026-8855

CVE-2026-8855

IBM HTTP Server — IBM HTTP Server is affected by multiple vulnerabilities

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
37
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 39.6.396 × 207.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
HTTP Server8.5.0 – Interim Fix 002–CNA
HTTP Server9.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
ibm (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchibm.com/support/pages/node/7274065