CVE-2026-6053 IBM® Db2® is vulnerable to a denial of service when a specially crafted query is run with range partitioned tables
Attackers can cause a denial of service in IBM Db2 by executing specially crafted queries against range partitioned tables.
- 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-2026-6053?
CVE-2026-6053 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 a specially crafted query is run with range partitioned tables.
Weakness: CWE-770
Which versions are affected by CVE-2026-6053?
It affects 1 product.
Products include Ibm Db2.
How do I fix CVE-2026-6053?
No fix has been published for CVE-2026-6053 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-2026-6053 being exploited?
There is no known exploitation of CVE-2026-6053 in the wild and no public exploit code.
Other vulnerabilities in Ibm Db2
Sources
Also known as GHSA-2j7q-r439-8qqq.