Vulnerability Description
pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, when pg_jobmon is installed and part_config.jobmon is true, exception handlers in multiple pg_partman functions place p_parent_table verbatim inside a SQL string literal used to call pg_jobmon.add_job(). A partman_user can create a parent-table name containing a single quote that terminates the literal and injects SQL when an affected exception path runs. If pg_partman_bgw reaches that path, the injected SQL executes with pg_partman_bgw.role privileges, which default to PostgreSQL superuser, permitting database-wide compromise and operating-system command execution as the PostgreSQL service account. The persistent part_config row can trigger the escalation again on later maintenance ticks. This issue is fixed in version 5.5.0.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b16
- https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0
- https://github.com/pgpartman/pg_partman/security/advisories/GHSA-gv5h-j2cm-rhc3
FAQ
What is CVE-2026-61819?
CVE-2026-61819 is a vulnerability with a CVSS score of 8.5 (HIGH). pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, when pg_jobmon is installed and part_config.jobmon is true, exception handlers in multiple pg_partma...
How severe is CVE-2026-61819?
CVE-2026-61819 has been rated HIGH with a CVSS base score of 8.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-61819?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.