CVE-2026-8852
Denial of Service in IBM HTTP Server via mod_fastcgi
Publication date: 2026-05-26
Last updated on: 2026-05-26
Assigner: IBM Corporation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| ibm | http_server | to 9.0 (inc) |
| ibm | http_server | to 9.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-617 | The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The vulnerability in IBM HTTP Server 8.5 and 9.0 affects availability due to a denial of service via the optional mod_fastcgi module, but it does not impact confidentiality or integrity.
Since the vulnerability only affects availability and does not compromise data confidentiality or integrity, its direct impact on compliance with standards like GDPR or HIPAA—which primarily focus on protecting personal data confidentiality and integrity—is limited.
However, availability is also a component of these regulations, so prolonged denial of service could potentially affect compliance related to system availability requirements.
What immediate steps should I take to mitigate this vulnerability?
To mitigate the denial of service vulnerability in IBM HTTP Server 8.5 and 9.0 related to the mod_fastcgi module, it is recommended to apply the appropriate interim fixes or upgrade to the latest fix packs.
- For version 9.0, upgrade to Fix Pack 9.0.5.29 or later.
- For version 8.5, upgrade to Fix Pack 8.5.5.30 or later.
Can you explain this vulnerability to me?
This vulnerability affects IBM HTTP Server versions 8.5 and 9.0. It is related to the optional mod_fastcgi module, which can be exploited to cause a denial of service (DoS) condition.
How can this vulnerability impact me? :
The impact of this vulnerability is a denial of service, meaning that an attacker could cause the IBM HTTP Server to become unavailable or unresponsive by exploiting the mod_fastcgi module.