CVE-2026-6471 | BDVDB-2026-358592 Detail

PostgreSQL

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-862 Missing Authorization

References#

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

Exploit#

No public exploit known

History#

Version 12026-08-13Record published in the CVE List.
Version 22026-08-29Most recent update recorded in the CVE List.

Published

Published: 2026-08-13
Last modified: 2026-08-29

Vendor information

Vendor: Not stated
Product: PostgreSQL

Score

7.2 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 45.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Missing Authorization

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 18 and < 18.6
Fixed
18.6
Vulnerable
>= 17 and < 17.11
Fixed
17.11
Vulnerable
>= 16 and < 16.15
Fixed
16.15
Vulnerable
>= 15 and < 15.19
Fixed
15.19
Vulnerable
< 14.24
Fixed
14.24

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.2 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).