CVE-2026-16239
HIGH
NVD
CVSS Score
8.8
Severity
HIGH
Published
Aug 13, 2026
Vendor
unknown
Description
Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with different types. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.