CVE-2026-6638

Published: Mag 14, 2026 Last Modified: Mag 18, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 3,7
Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

SQL injection in PostgreSQL logical replication ALTER SUBSCRIPTION ... REFRESH PUBLICATION allows a subscriber table creator to execute arbitrary SQL with the subscription's publication-side credentials. The attack takes effect at the next REFRESH PUBLICATION. Within major versions 16, 17, and 18, minor versions before PostgreSQL 18.4, 17.10, and 16.14 are affected. Versions before PostgreSQL 16 are unaffected.

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
0,0002
Percentile
0,1th
Updated

EPSS Score Trend (Last 6 Days)

89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Availability Authentication Access Control
Potential Impacts:
Execute Unauthorized Code Or Commands Read Application Data Gain Privileges Or Assume Identity Bypass Protection Mechanism Modify Application Data
Applicable Platforms
Languages: Not Language-Specific, SQL
Technologies: Database Server
Likelihood of Exploit: High
View CWE Details
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
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-2026-6638/
https://www.postgresql.org/support/security/CVE-2026-6638/