---
cve: "CVE-2025-11539"
severity: "CRITICAL"
cvss: 9.9
epss: "59%"
vendor: "Grafana"
kev: false
exploited: false
published: "2025-10-09 08:15:38"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T01:50:11+02:00"
---

# CVE-2025-11539

> 9.9 CRITICAL · 🧪 PoC

## Beschreibung

Grafana Image Renderer is vulnerable to remote code execution due to an arbitrary file write vulnerability. This is due to the fact that the /render/csv endpoint lacked validation of the filePath parameter that allowed an attacker to save a shared object to an arbitrary location that is then loaded by the Chromium process.

Instances are vulnerable if:

1. The default token ("authToken") is not changed, or is known to the attacker.
2. The attacker can reach the image renderer endpoint.
This issue affects grafana-image-renderer: from 1.0.0 through 4.0.16.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 3998b13834d08065b507e48ae3af9aadfa85dee9 (Commit)
- 1858c2c51347b23f43b1d288bc9222f16030e3f9 (Commit)

## Referenzen

- <https://grafana.com/security/security-advisories/cve-2025-11539/>
- <https://github.com/grafana/grafana-image-renderer/releases/tag/v4.0.17>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-11539) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_