IBM Db2 11.5.0-11.5.9 / 12.1.0-12.1.4 DoS via Crafted Query (AutTxn)
CVE-2026-1718 Published on May 27, 2026
IBM® Db2® is vulnerable to a denial of service with a specially crafted query when running an AUTONOMOUS procedure
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.
Vulnerability Analysis
CVE-2026-1718 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity, and a high impact on availability.
Weakness Type
Allocation of Resources Without Limits or Throttling
The software allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
Products Associated with CVE-2026-1718
Want to know whenever a new CVE is published for IBM Db2? stack.watch will email you.
Affected Versions
IBM Db2:- Version 11.5.0, <= 11.5.9 is affected.
- Version 12.1.0, <= 12.1.4 is affected.