{"id":"CVE-2026-61781","published":"2026-09-18T20:17:19.003","lastModified":"2026-09-23T18:12:04.247","description":"pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, create_partition_time() reads the writable part_config.time_encoder text value and interpolates it without identifier quoting into a dynamically executed SELECT statement. A role with the documented partman_user INSERT and UPDATE privileges can store SQL rather than a function name. When pg_partman_bgw later creates a child partition for a text- or UUID-keyed set, the worker executes the stored SQL with pg_partman_bgw.role privileges, which default to PostgreSQL superuser. The persistent configuration row can repeatedly restore elevated access on later maintenance ticks, and successful exploitation can permit database-wide compromise and operating-system command execution as the PostgreSQL service account. This issue is fixed in version 5.5.0.","cvssScore":9.9,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-89","CWE-269"],"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-742w-3j7c-qwvp","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-742w-3j7c-qwvp","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows a role with specific privileges to execute arbitrary SQL, leading to potential database-wide compromise and OS command execution.","exploitability":"Exploitation is moderately hard as it requires a role with partman_user INSERT and UPDATE privileges and knowledge of the SQL injection vulnerability. Precondition is the presence of a writable part_config.time_encoder value.","blast_radius":"If exploited, the impact could be severe, potentially leading to full database compromise and execution of arbitrary OS commands.","remediation":"Upgrade to pg_partman version 5.5.0 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","sql-injection","postgres","partitioned-tables"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-27T08:57:45.376Z"}}