CVE-2026-8850 Details
Description
IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_ibm_upload.
A denial-of-service vulnerability has been identified in IBM HTTP Server versions 8.5 and 9.0. The issue arises in the optional mod_ibm_upload module, where improper handling can lead to a null pointer dereference, causing a crash or unresponsive state in the server.
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. Interim fixes resolving this vulnerability are also available.
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 26, 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-476 | NULL Pointer Dereference | [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] |