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23impact

PostgreSQL fails to check type USAGE privilege

PostgreSQL · CVE-2026-6470
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What is it?

Missing authorization in PostgreSQL DDL commands allows an object creator to achieve denial of service against ALTER and DROP of the type, via creating a dependency on the type. Many DDL operations did check the privilege, but assigning a range subtype and referencing the type from an SQL expression did not. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
4.3
EPSS
0.3%
First seen
7 d ago
Status
corroborated

All PostgreSQL vulnerabilities