CVE-2026-6471

PostgreSQL logical decoding can dlopen arbitrary file

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

Version Information

Affected Version Fixed In Fix Published
18 18.5 2026-08-13
17 17.11 2026-08-13
16 16.15 2026-08-13
15 15.19 2026-08-13
14 14.24 2026-08-13

For more information about PostgreSQL versioning, please visit the versioning page.

CVSS 3.0

Overall Score 7.2
Component core server
Vector AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Reporting Security Vulnerabilities

If you wish to report a new security vulnerability in PostgreSQL, please send an email to security@postgresql.org.

For reporting non-security bugs, please see the Report a Bug page.