Vulnerability · Published Sep 18, 2026 · Assigned by GitHub_M
CVE-2026-61819pg_partman privilege escalation via SQL injection in when using pg_jobmon and encountering exception
High 8.5
In plain English
A high-severity SQL injection in pg_partman from pgpartman. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | pg-partman | no fix listed | DEBIAN-CVE-2026-61819 |
| Debian:13 | pg-partman | no fix listed | DEBIAN-CVE-2026-61819 |
| Debian:14 | pg-partman | 5.5.0-1 | DEBIAN-CVE-2026-61819 |
| Ubuntu:22.04:LTS | pg-partman | no fix listed | UBUNTU-CVE-2026-61819 |
| Ubuntu:24.04:LTS | pg-partman | no fix listed | UBUNTU-CVE-2026-61819 |
| Ubuntu:26.04:LTS | pg-partman | no fix listed | UBUNTU-CVE-2026-61819 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| pgpartman | pg_partman | < 5.5.0 |
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H