CVE-2026-6478

Published: Mag 14, 2026 Last Modified: Mag 18, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,5
Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all supported releases. However, current databases may have MD5-hashed passwords originating in upgrades from PostgreSQL 13 or earlier. 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
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 6 Days)

385

Covert Timing Channel

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Other
Potential Impacts:
Read Application Data Other
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Medium
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-2026-6478/
https://www.postgresql.org/support/security/CVE-2026-6478/