CVE-2026-6476

HIGH 7.2

PostgreSQL pg_createsubscriber allows SQL injection via subscription name

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-89
Vendor	n/a
Product	postgresql
Ecosystems	Database
Industries	Technology
Published	May 14, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / PostgreSQL

18 < 18.4 17 < 17.10

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

The PostgreSQL project thanks Yu Kunpeng for reporting this problem.