CVE-2026-120150 PostgreSQL expanded-record domain-check use-after-free executes arbitrary code
An object creator can trigger a use-after-free in PostgreSQL expanded-record domain checks to execute code as the database OS user.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- Available
What is CVE-2026-120150?
CVE-2026-120150 is a high-severity use after free vulnerability in PostgreSQL, published on 12 Nov 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Use after free in PostgreSQL expanded-record domain checks allows an object creator to execute arbitrary code as the operating system user running the database, via repeated checks of a domain over a composite type that cause reuse of a dangling memory-context pointer. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Weakness: CWE-416
Which versions are affected by CVE-2026-120150?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-120150?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-120150 being exploited?
There is no known exploitation of CVE-2026-120150 in the wild and no public exploit code.
Sources
Also known as ALPINE-CVE-2026-120150, DEBIAN-CVE-2026-120150, ECHO-1764-fbd8-09da, GHSA-vwp2-2ffq-7j23.