{"id":"CVE-2026-61821","published":"2026-09-18T20:17:20.220","lastModified":"2026-09-24T21:22:19.873","description":"pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, drop_partition_id() and drop_partition_time() use part_config.retention_schema as the target for ALTER TABLE SET SCHEMA and accept any nonempty schema name. A role with partman_user access can select a target schema where the role lacks the normal CREATE privilege, and the background worker performs the relocation with pg_partman_bgw.role privileges, which default to PostgreSQL superuser, bypassing the authorization check that a normal ALTER TABLE SET SCHEMA operation would enforce. This permits unauthorized relocation of retained child tables between schemas. This issue is fixed in version 5.5.0.","cvssScore":8.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","cwes":["CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b165854361","tags":[]},{"url":"https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0","tags":[]},{"url":"https://github.com/pgpartman/pg_partman/security/advisories/GHSA-pxp2-x8cf-rfhc","tags":[]}],"exploitRefs":[{"url":"https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b165854361","tags":[]},{"url":"https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0","tags":[]},{"url":"https://github.com/pgpartman/pg_partman/security/advisories/GHSA-pxp2-x8cf-rfhc","tags":[]}],"hasPoc":true,"ai":null}