CVE-2026-6476

PostgreSQL pg_createsubscriber allows SQL injection via subscription name

Published May 14, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6270-1 postgresql-17 security update
Ubuntu USN Ubuntu USN USN-8294-1 PostgreSQL vulnerabilities
History
Type Values Removed Values Added
CPEs cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Postgresql
Postgresql postgresql
Vendors & Products Postgresql
Postgresql postgresql
Type Values Removed Values Added
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.
Title PostgreSQL pg_createsubscriber allows SQL injection via subscription name
Weaknesses CWE-89
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
PostgreSQL
Published
Updated
May 15, 2026, 3:56 AM
Reserved
Apr 17, 2026, 12:43 AM
Status
Analyzed
Published
May 14, 2026, 2:16 PM
Modified
Nov 11, 2026, 8:10 PM