CVE-2026-61819 pg_partman privilege escalation via SQL injection in when using pg_jobmon and encountering exception
A SQL injection vulnerability in pg_partman allows privilege escalation to superuser and OS command execution when pg_jobmon is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-61819?
CVE-2026-61819 is a high-severity SQL injection vulnerability in pgpartman pg_partman, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-89
Which versions are affected by CVE-2026-61819?
How do I fix CVE-2026-61819?
Upgrade to a fixed version.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-61819 being exploited?
There is no known exploitation of CVE-2026-61819 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-61819, ECHO-7b96-3c92-04c6, GHSA-gv5h-j2cm-rhc3, UBUNTU-CVE-2026-61819.