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CVE-2026-6471

PostgreSQL logical decoding can dlopen arbitrary file

Published: 8/13/2026 Last updated: 8/29/2026 Reserved: 4/17/2026

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.

CNA assigner: PostgreSQL (f86ef6dc-4d3a-42ad-8f28-e6d5547a5007) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 7.2 High CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (5)

conf-mingw-w64-postgresql-i686 conf-mingw-w64-postgresql-x86_64 conf-postgresql ocsigen-start postgresql

Products affected (0)

No product listed.

References (1)

Credits (1)