Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.