CVE-2026-6478
Published: May 14, 2026
Modified: May 14, 2026
CVSS v3.1
6.5
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | PostgreSQL | affected 18 - < 18.4affected 17 - < 17.10affected 16 - < 16.14affected 15 - < 15.18affected 0 - < 14.23 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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