CVE-2026-1718 IBM® Db2® is vulnerable to a denial of service with a specially crafted query when running an AUTONOMOUS procedure
Attackers can cause a denial of service in IBM Db2 by submitting a specially crafted query when autonomous transactions are enabled.
- 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-2026-1718?
CVE-2026-1718 is a high-severity denial of service vulnerability in Ibm Db2, published on 27 May 2026. Any signed-in user can exploit it over the 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 with a specially crafted query when autonomous transactions are enabled.
Weakness: CWE-770
Which versions are affected by CVE-2026-1718?
It affects 1 product.
Products include Ibm Db2.
How do I fix CVE-2026-1718?
No fix has been published for CVE-2026-1718 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-2026-1718 being exploited?
There is no known exploitation of CVE-2026-1718 in the wild and no public exploit code.
Other vulnerabilities in Ibm Db2
Sources
Also known as GHSA-5xr2-xxr9-mq26.