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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-6478 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://www.postgresql.org/support/security/CVE-2026-6478/ PostgreSQL

Weakness Enumeration

CWE-ID CWE Name Source
CWE-385 Covert Timing Channel PostgreSQL  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-6478
NVD Published Date:
05/14/2026
NVD Last Modified:
05/14/2026
Source:
PostgreSQL