CVE-2025-11539 CRITICAL

CVE-2025-11539: Arbitrary Code Execution in Grafana Image Renderer Plugin

Vendor Grafana
Product grafana-image-renderer
Weakness CWE-94 · Code injection
Published October 9, 2025
Last update February 26, 2026

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 9, 2025 CVE published
February 26, 2026 Record updated