CVE-2026-6475

Published: Mag 14, 2026 Last Modified: Mag 18, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

Symlink following in PostgreSQL pg_basebackup plain format and in pg_rewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the origin superuser, due to features like shared_preload_libraries. Hence, the attack has practical implications only if one takes relevant action between these commands and server start, like moving the files to a different VM or snapshotting the VM. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0005
Percentile
0,1th
Updated

EPSS Score Trend (Last 6 Days)

61

UNIX Symbolic Link (Symlink) Following

Incomplete
Abstraction: Compound Structure: Composite
Common Consequences
Security Scopes Affected:
Confidentiality Integrity
Potential Impacts:
Read Files Or Directories Modify Files Or Directories
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
Application

Postgresql by Postgresql

Product Information
Vendor Postgresql
Product Postgresql
Version Range Affected
From 15.0 (inclusive)
To 15.18 (exclusive)
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Postgresql by Postgresql

Product Information
Vendor Postgresql
Product Postgresql
Version Range Affected
From 17.0 (inclusive)
To 17.10 (exclusive)
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Postgresql by Postgresql

Product Information
Vendor Postgresql
Product Postgresql
Version Range Affected
From 16.0 (inclusive)
To 16.14 (exclusive)
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Postgresql by Postgresql

Product Information
Vendor Postgresql
Product Postgresql
Version Range Affected
To 14.23 (exclusive)
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Postgresql by Postgresql

Product Information
Vendor Postgresql
Product Postgresql
Version Range Affected
From 18.0 (inclusive)
To 18.4 (exclusive)
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.postgresql.org/support/security/CVE-2026-6475/
https://www.postgresql.org/support/security/CVE-2026-6475/