CVEvulnerability

CVE-2026-6478

6.5 MEDIUM Published 2026-05-14 Modified 2026-08-25 Official page ↗
Status
Modified
Published
2026-05-14
Last modified
2026-08-25
Assigner
f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
CVSS 3.1 (f86ef6dc-4d3a-42ad-8f28-e6d5547a5007)
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Weaknesses
CWE-385

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.

Affected configurations

• postgresql postgresql (< 14.23) • postgresql postgresql (>= 15.0 < 15.18) • postgresql postgresql (>= 16.0 < 16.14) • postgresql postgresql (>= 17.0 < 17.10) • postgresql postgresql (>= 18.0 < 18.4)

Related

Weakness · CWE (1)

  • CWE-385 Covert Timing Channel weakness

References