CVE-2026-6476

CVE Details

Release Date:	2026-05-14
Impact:	Important	What is this?

Description

SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pg_createsubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected. Versions before PostgreSQL 17 are unaffected.

See more information about CVE-2026-6476 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.2
Vector String:	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Version:	3.1
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	High
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 10 (postgresql18)	ELSA-2026-27742	2026-07-17
Oracle Linux version 10 (postgresql18)	ELSA-2026-67280-0	2026-09-15
Oracle Linux version 9 (pg_repack)	ELSA-2026-67848	2026-09-16
Oracle Linux version 9 (pgaudit)	ELSA-2026-67848	2026-09-16
Oracle Linux version 9 (pgvector)	ELSA-2026-67848	2026-09-16
Oracle Linux version 9 (postgis)	ELSA-2026-67848	2026-09-16
Oracle Linux version 9 (postgres-decoderbufs)	ELSA-2026-67848	2026-09-16
Oracle Linux version 9 (postgresql)	ELSA-2026-67848	2026-09-16