CVE-2026-2004

PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code

Published: 2/12/2026 Last updated: 2/13/2026 Reserved: 2/5/2026

Missing validation of type of input in PostgreSQL intarray extension selectivity estimator function allows an object creator to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

CNA assigner: PostgreSQL (f86ef6dc-4d3a-42ad-8f28-e6d5547a5007) Requested by: n/a

Metrics

Version	Score	Severity	Vector String
3.1	8.8	High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (5)

conf-mingw-w64-postgresql-i686 conf-mingw-w64-postgresql-x86_64 conf-postgresql ocsigen-start postgresql

Products affected (1)

Product	Vendor	Version
PostgreSQL	n/a	Snapdragon XR2 5G Platform

References (1)

https://www.postgresql.org/support/security/CVE-2026-2004/

Credits (1)

The PostgreSQL project thanks Daniel Firer, as part of zeroday.cloud, for reporting this problem.