CVE-2026-12669 IBM MQ Out-of-bounds Read
An authenticated attacker can trigger a minor out-of-bounds read via malformed compressed data, though no data is disclosed and the request is rejected.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12669?
CVE-2026-12669 is a low-severity vulnerability in IBM MQ Advanced container images, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM MQ could allow an authenticated attacker to trigger a minor out-of-bounds read when sending malformed compressed data, though the data is not disclosed and the request is rejected.
Weakness: CWE-125
Which versions are affected by CVE-2026-12669?
It affects 2 products.
Products include Ibm Mq Operator, Ibm Supplied Mq Advanced Container Images.
How do I fix CVE-2026-12669?
No fix has been published for CVE-2026-12669 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-12669 being exploited?
There is no known exploitation of CVE-2026-12669 in the wild and no public exploit code.
Other vulnerabilities in IBM MQ Advanced container images
Sources
Also known as GHSA-hp4q-fjfh-jhv7.