CVE-2023-26285 IBM MQ denial of service

Medium 5.9 Published 5 May 2023 Updated 29 Jan 2025

A remote attacker can cause a denial of service in IBM MQ by sending invalid data, requiring administrators to apply vendor patches.

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-2023-26285?

CVE-2023-26285 is a medium-severity denial of service vulnerability in IBM MQ, published on 5 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM MQ 9.2 CD, 9.2 LTS, 9.3 CD, and 9.3 LTS could allow a remote attacker to cause a denial of service due to an error processing invalid data. IBM X-Force ID: 248418.

Weakness: CWE-770, CWE-119

Which versions are affected by CVE-2023-26285?

It affects 1 product.

Products include Ibm Mq Appliance.

How do I fix CVE-2023-26285?

No fix has been published for CVE-2023-26285 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-2023-26285 being exploited?

There is no known exploitation of CVE-2023-26285 in the wild and no public exploit code.

Sources

Also known as GHSA-p8v4-cwrw-r86g.