CVE-2026-61821 pg_partman authorization bypass to move child tables between schemas during retention

pgpartman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, droppartitionid and droppartitiontime use partconfig.retentionschema as the target for ALTER TABLE SET SCHEMA and accept any nonempty schema name. A role with partmanuser access can select a target...