CVE-2026-10751 IBM MQ Java messaging is vulnerable to remote code execution
An authenticated attacker can execute arbitrary code on client applications via a deserialization filter bypass in IBM MQ Java libraries.
- 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-2026-10751?
CVE-2026-10751 is a high-severity unsafe deserialization vulnerability in IBM MQ, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM MQ Java and JMS client libraries could allow an authenticated attacker to execute arbitrary code on client applications due to a deserialization filter bypass in exception handling.
Weakness: CWE-502
Which versions are affected by CVE-2026-10751?
How do I fix CVE-2026-10751?
No fix has been published for CVE-2026-10751 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-10751 being exploited?
There is no known exploitation of CVE-2026-10751 in the wild and no public exploit code.
Sources
Also known as GHSA-94jh-fv89-qhj3.