CVE-2026-8856
Analyzed Analyzed - Analysis Complete

IBM HTTP Server Configuration Denial of Service

Publication date: 2026-05-26

Last updated on: 2026-05-26

Assigner: IBM Corporation

Description
IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.

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Meta Information

Published
2026-05-26
Last Modified
2026-05-26
Generated
2026-07-06
AI Q&A
2026-05-26
EPSS Evaluated
2026-07-04
NVD
CVE-2026-8856
EUVD
EUVD-2026-31903

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ibm http_server From 8.5.0.0 (inc) to 8.5.5.30 (exc)
ibm http_server From 9.0.0.0 (inc) to 9.0.5.29 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.

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Executive Summary

This vulnerability affects IBM HTTP Server versions 8.5 and 9.0. It is a denial of service (DoS) issue that occurs when an attacker has write access to certain parts of the server configuration. By exploiting this access, the attacker can cause the server to become unavailable or disrupted.

Impact Analysis

The impact of this vulnerability is a denial of service condition, meaning that the IBM HTTP Server could be made unavailable or disrupted by an attacker who has write access to parts of the server configuration. This could lead to service interruptions and potentially affect the availability of applications or websites hosted on the server.

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