CVE-2026-14672

Published: Aug 13, 2026Modified: Aug 29, 2026

5.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitability: 3.9 / Impact: 1.4

Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 (Secondary)

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 (5)

Products: Postgresql: Postgresql

Postgresql

1 product

Postgresql

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Postgresql Postgresql	From 14.0 to 14.24
Postgresql Postgresql	From 15.0 to 15.19
Postgresql Postgresql	From 16.0 to 16.15
Postgresql Postgresql	From 17.0 to 17.11
Postgresql Postgresql	From 18.0 to 18.5

Related CWEs

CWE-204

Observable Response Discrepancy

The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.

References (1)

https://www.postgresql.org/support/security/CVE-2026-14672/

Source: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

Vendor Advisory

Timeline

No history available yet.