---
cve: "CVE-2026-14672"
severity: "MEDIUM"
cvss: 5.3
epss: "25%"
vendor: "n/a"
kev: false
exploited: false
published: "2026-08-13 13:17:44"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T08:40:11+02:00"
---

# CVE-2026-14672

> 5.3 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Referenzen

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

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-14672) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_