# CVE-2026-14672

## Summary

- **CVE ID:** CVE-2026-14672
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- **CWE:** CWE-204
- **Published:** Aug 13, 2026
- **Last Modified:** Aug 29, 2026

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

## Affected Products

- n/a — PostgreSQL (18)
- n/a — PostgreSQL (17)
- n/a — PostgreSQL (16)

## References

- [CNA](https://www.postgresql.org/support/security/CVE-2026-14672/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.25%
- **EPSS Percentile:** 16.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._