---
id: CVE-2025-11539
title: "Grafana Image Renderer is vulnerable to remote code execution due to an\_arbitrary file write vulnerability"
summary: "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 sav…"
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-94
published: '2025-10-09'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T13:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-11539'
references:
  - url: 'https://github.com/grafana/grafana-image-renderer/releases/tag/v4.0.17'
    label: security@grafana.com
  - url: 'https://grafana.com/security/security-advisories/cve-2025-11539/'
    label: security@grafana.com
tags:
  - nvd
epss: 0.00636
epssPercentile: 0.48865
ingestedAt: '2026-10-08T13:42:55.036Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.