CVE-2026-8855 Details
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).
A vulnerability in IBM HTTP Server versions 8.5 and 9.0 allows for remote code execution and denial-of-service conditions, specifically in configurations that utilize TLS mutual authentication (client authentication).
Users are advised to upgrade to IBM HTTP Server Fix Pack 9.0.5.29 or later, or Fix Pack 8.5.5.30 or later. For both versions, additional interim fixes may be available and linked off the interim fix download page.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7274065 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ibm http server | >= 8.5.0.0, < 8.5.5.30 >= 9.0.0.0, < 9.0.5.29 |
CPE
Remediation
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| ibm aix | All versions |
CPE
Remediation
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| ibm z/os | All versions |
CPE
Remediation
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| linux linux kernel | All versions |
CPE
Remediation
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| microsoft windows | All versions |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 26, 2026 | Initial Analysis | [email protected] |
| May 26, 2026 | New CVE Received | [email protected] |