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Vulnerability record · CVE-2026-6471 · published 13 August 2026

CVE-2026-6471: Postgresql missing authorization vulnerability

Postgresql · Postgresql

Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

7.2 CVSS 3.1 High EPSS 0.53% · top 57.6% CWE-862 · Missing authorization
7.2CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
29 Aug 2026Last modified by NVD

Description

Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.postgresql.org/support/security/CVE-2026-6471/ Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-6471), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.