CVE-2026-61781

9.9 CRITICALpublic exploit available

Published 2026-09-18 · Updated 2026-09-23

AI risk analysis

Summary: The flaw allows a role with specific privileges to execute arbitrary SQL, leading to potential database-wide compromise and OS command execution.
Exploitability: Exploitation is moderately hard as it requires a role with partman_user INSERT and UPDATE privileges and knowledge of the SQL injection vulnerability. Precondition is the presence of a writable part_config.time_encoder value.
Blast radius: If exploited, the impact could be severe, potentially leading to full database compromise and execution of arbitrary OS commands.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to pg_partman version 5.5.0 or later.

rcesql-injectionpostgrespartitioned-tables

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, create_partition_time() reads the writable part_config.time_encoder text value and interpolates it without identifier quoting into a dynamically executed SELECT statement. A role with the documented partman_user INSERT and UPDATE privileges can store SQL rather than a function name. When pg_partman_bgw later creates a child partition for a text- or UUID-keyed set, the worker executes the stored SQL with pg_partman_bgw.role privileges, which default to PostgreSQL superuser. The persistent configuration row can repeatedly restore elevated access on later maintenance ticks, and successful exploitation can permit database-wide compromise and operating-system command execution as the PostgreSQL service account. This issue is fixed in version 5.5.0.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-89, CWE-269

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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