VDB
CVE-2026-6478
CVE-2026-6478
PUBLISHED
CVSS 6.5 MEDIUM
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 0.08% · 22.9th percentile
Risk Scores
CVSS v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score
0.08%
22.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n/a | PostgreSQL | 18, 16, 15 |
Timeline
- May 14, 2026 CVE Published
- May 14, 2026 CVE Updated
- May 15, 2026 Security Advisory
- May 16, 2026 EPSS Score
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score