{"id":"CVE-2026-61821","title":"pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID","summary":"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 no…","severity":"high","cvss":8.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","cwe":["CWE-862"],"vendor":"pgpartman","product":"pg_partman","affected":["pg_partman < 5.5.0"],"published":"2026-09-18","updated":"2026-09-19","sourceUpdated":"2026-09-19T15:17:00.153","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61821","references":[{"url":"https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b165854361","label":"security-advisories@github.com"},{"url":"https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0","label":"security-advisories@github.com"},{"url":"https://github.com/pgpartman/pg_partman/security/advisories/GHSA-pxp2-x8cf-rfhc","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"epss":0.0029,"epssPercentile":0.21815,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-19T13:37:30.159508Z"},"ingestedAt":"2026-09-18T20:51:25.677Z","slug":"CVE-2026-61821","body":"## Overview\n\npg_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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":46.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}