CVE-2026-6476 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Postgresql	Postgresql

No data.

No data.

References

Link	Providers
https://www.spirityenterprise.com/pentest
https://www.postgresql.org/support/security/CVE-2026-6476/

History

Thu, 14 May 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Thu, 14 May 2026 15:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Postgresql Postgresql postgresql
Vendors & Products		Postgresql Postgresql postgresql

Thu, 14 May 2026 13:30:00 +0000

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

MITRE

Status: PUBLISHED

Assigner: PostgreSQL

Published: 2026-05-14T13:00:11.865Z

Updated: 2026-05-14T15:31:52.892Z

Reserved: 2026-04-17T00:43:55.119Z

Link: CVE-2026-6476

Vulnrichment

Updated: 2026-05-14T15:31:48.922Z

NVD

Status : Awaiting Analysis

Published: 2026-05-14T14:16:25.230

Modified: 2026-05-14T16:21:23.190

Link: CVE-2026-6476

Redhat

No data.

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