CVE-2023-26281 IBM HTTP Server denial of service

Medium 5.9 Published 28 Feb 2023 Updated 6 Mar 2025

A remote attacker can cause a denial of service in IBM HTTP Server by sending a specially crafted URL.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-26281?

CVE-2023-26281 is a medium-severity denial of service vulnerability in IBM HTTP Server, published on 28 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM HTTP Server 8.5 used by IBM WebSphere Application Server could allow a remote user to cause a denial of service using a specially crafted URL. IBM X-Force ID: 248296.

Weakness: CWE-20

Which versions are affected by CVE-2023-26281?

It affects 1 product.

Products include Ibm Http Server.

How do I fix CVE-2023-26281?

No fix has been published for CVE-2023-26281 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-26281 being exploited?

There is no known exploitation of CVE-2023-26281 in the wild and no public exploit code.

Sources

Also known as GHSA-mfj2-3qr9-x29v.