CVE-2026-14672
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | PostgreSQL | 18 < 18.5 | affected |
| n/a | PostgreSQL | 17 < 17.11 | affected |
| n/a | PostgreSQL | 16 < 16.15 | affected |
Weaknesses
- CWE-204: Observable Response Discrepancy
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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