VDB
CVE-2026-14672
CVE-2026-14672
PUBLISHED
CVSS 5.3 MEDIUM
Reported by PostgreSQL · Published August 13, 2026
Observable response discrepancy in PostgreSQL SCRAM authentication allows an unauthenticated user to test the existence of a user via observing the SCRAM iteration count. This requires the probed user to have a non-default scram_iterations count, because the authentication challenge for a nonexistent user reports the default scram_iterations. Within major versions 16-18, minor versions before PostgreSQL 18.6, 17.11, and 16.15 are affected. Versions before PostgreSQL 16 are unaffected.
Risk Scores
CVSS 3.1
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n/a | PostgreSQL | 18, 17, 16 |
| alpine | postgresql15 | 0, 0, 0 |
| alpine | postgresql16 | 0, 0, 0 |
| alpine | postgresql18 | 0, 0, 0 |
| n/a | PostgreSQL | 18, 17, 16 |
| alpine | postgresql17 | 0, 0, 0 |
Timeline
- Aug 13, 2026 CVE Published
- Aug 15, 2026 Coalition ESS Score
- Aug 20, 2026 Security Advisory
- Aug 24, 2026 EPSS Score
- Aug 30, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 15, 2026 EPSS Score
- Sep 17, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
- Sep 24, 2026 EPSS Score
- Sep 26, 2026 EPSS Score
- Oct 1, 2026 EPSS Score