CVE-2026-6476

PostgreSQL pg_createsubscriber allows SQL injection via subscription name

State: Published
Severity: 7.2 High
Published: May 14, 2026
Updated: May 15, 2026
Reserved: Apr 17, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.2 High	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	PostgreSQL

Weaknesses

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Affected Products

Product	Versions
PostgreSQLn/a	18 to before 18.4Affected 17 to before 17.10Affected

References

https://www.postgresql.org/support/security/CVE-2026-6476/

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