Vulnerability · Published Sep 18, 2026 · Assigned by GitHub_M
CVE-2026-61822pg_partman disable maintenance for all partition sets
Medium 6.5
In plain English
A medium-severity security flaw 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 0.5% (higher than 45% 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, run_maintenance() handles exceptions outside the loop that processes rows from part_config, so an exception for one partition set immediately terminates the loop and skips every later set. A role with partman_user access can insert or update a row that reliably fails and assign it a low maintenance_order value so it is processed before legitimate rows. Repeated maintenance ticks then abort before legitimate partition sets are maintained, causing database-wide loss of automated partition maintenance. 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-2026-61822 |
| Debian:13 | pg-partman | no fix listed | DEBIAN-CVE-2026-61822 |
| Debian:14 | pg-partman | 5.5.0-1 | DEBIAN-CVE-2026-61822 |
| Ubuntu:22.04:LTS | pg-partman | no fix listed | UBUNTU-CVE-2026-61822 |
| Ubuntu:24.04:LTS | pg-partman | no fix listed | UBUNTU-CVE-2026-61822 |
| Ubuntu:26.04:LTS | pg-partman | no fix listed | UBUNTU-CVE-2026-61822 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| pgpartman | pg_partman | < 5.5.0 |
Weakness: CWE-703 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H