CVEvulnerability

CVE-2026-14672

5.3 MEDIUM Published 2026-08-13 Modified 2026-08-29 Official page ↗
Status
Modified
Published
2026-08-13
Last modified
2026-08-29
Assigner
f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
CVSS 3.1 (f86ef6dc-4d3a-42ad-8f28-e6d5547a5007)
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-204

Description

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.

Affected configurations

• postgresql postgresql (>= 14.0 < 14.24) • postgresql postgresql (>= 15.0 < 15.19) • postgresql postgresql (>= 16.0 < 16.15) • postgresql postgresql (>= 17.0 < 17.11) • postgresql postgresql (>= 18.0 < 18.5)

Related

Weakness · CWE (1)

  • CWE-204 Observable Response Discrepancy weakness

References