CVE-2026-6471

PostgreSQL logical decoding can dlopen arbitrary file

State: Published
Severity: 7.2 High
Published: Aug 13, 2026
Updated: Aug 29, 2026
Reserved: Apr 17, 2026

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.

Scores

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

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
PostgreSQLn/a	18 to before 18.6Affected 17 to before 17.11Affected 16 to before 16.15Affected 15 to before 15.19Affected before 14.24Affected

References

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

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