---
cve: "CVE-2023-3128"
severity: "CRITICAL"
cvss: 9.4
epss: "4%"
vendor: "Grafana"
kev: false
exploited: false
published: "2023-06-22 21:15:09"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T00:35:26+02:00"
---

# CVE-2023-3128

> 9.4 CRITICAL · 🧪 PoC

## Beschreibung

Grafana is validating Azure AD accounts based on the email claim. 

On Azure AD, the profile email field is not unique and can be easily modified. 

This leads to account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant app.

## CVSS-Vektor

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

| 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 | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- 5f9e0ace7eb4001f4106f912b0549936db87c68f (Commit)
- 8d9c05a1601f5324cb465950728ce6155f5ab44b (Commit)

## Referenzen

- <https://grafana.com/security/security-advisories/cve-2023-3128/>
- <https://github.com/grafana/bugbounty/security/advisories/GHSA-gxh2-6vvc-rrgp>
- <https://security.netapp.com/advisory/ntap-20230714-0004/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-3128) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_