SQL Injection Affecting pg-partman package, versions <5.5.0-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.58% (47th percentile)

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  • Snyk IDSNYK-ECHOLATEST-PGPARTMAN-19946232
  • published19 Sept 2026
  • disclosed18 Sept 2026

Introduced: 18 Sep 2026

NewCVE-2026-61820  (opens in a new tab)
CWE-89  (opens in a new tab)

How to fix?

Upgrade Echo:latest pg-partman to version 5.5.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pg-partman package and not the pg-partman package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, inherit_template_properties() manually surrounds primary-key column names from pg_attribute.attname with double quotes without escaping embedded double-quote characters. A partman_user who owns a template table can create a crafted column name that breaks out of the generated ALTER TABLE ADD PRIMARY KEY identifier when the background worker applies the key to a child partition. The generated SQL then 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 crafted catalog identifier persists until removed and can trigger again during later partition creation. This issue is fixed in version 5.5.0.