MEDIUM 5.3 NVD

CVE-2026-14672

Observable response discrepancy in PostgreSQL SCRAM authentication allows an unauthenticated user to test the existence of a user via observing the SCRAM iterat

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 18.5, 17.11, and 16.15 are affected. Versions before PostgreSQL 16 are unaffected.

References

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

Published: 2026-08-13 · Source: NVD · Feed updated: 2026-08-13

This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-08-13 via NVD.

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