CVE-2026-6476

Name: CVE-2026-6476
Creator: NVD / NIST
Published: 2026-05-14T14:16:25.23+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2026-6476 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

0.29%

20.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Postgresql	Postgresql	>= 17.0, < 17.10
Postgresql	Postgresql	>= 18.0, < 18.4

References

https://www.postgresql.org/support/security/CVE-2026-6476/Patch, Vendor Advisory

Timeline

Published: May 14, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-6476?

How severe is CVE-2026-6476?

CVE-2026-6476 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2026-6476?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-6476?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST