CVE-2026-16239 — PostgreSQL type confusion in cursor CLOSE + DECLARE executes arbitrary code
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 …
Published: 2026-08-13 · CVSS: 8.8 · CVSS 3.1
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 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7