CVE-2026-6051 IBM® Db2® is vulnerable to a denial of service when executing a specially crafted query with a small statement heap
Attackers can cause a denial of service in IBM Db2 by executing specially crafted queries with a small statement heap.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6051?
CVE-2026-6051 is a medium-severity denial of service vulnerability in Ibm Db2, published on 27 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a denial of service when executing a specially crafted query with a small statement heap.
Weakness: CWE-400
Which versions are affected by CVE-2026-6051?
It affects 1 product.
Products include Ibm Db2.
How do I fix CVE-2026-6051?
No fix has been published for CVE-2026-6051 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-2026-6051 being exploited?
There is no known exploitation of CVE-2026-6051 in the wild and no public exploit code.
Other vulnerabilities in Ibm Db2
Sources
Also known as GHSA-xfpq-g5f8-6gqr.