CVE-2026-18447
HIGH
NVD
CVSS Score
8.8
Severity
HIGH
Published
Nov 12, 2026
Vendor
unknown
Description
Type confusion in PostgreSQL SQL-language functions allows an object creator to execute arbitrary code as the operating system user running the database, via an output parameter of type "any". Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.