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CVE-2025-11539

9.9 · CRITICAL

Grafana Image Renderer is vulnerable to remote code execution due to an arbitrary file write vulnerability.

Published Oct 9, 2025CWE-94EPSS 0.64%

Overview

CVE-2025-11539 is a critical-severity vulnerability. It was published on October 9, 2025 and has a CVSS 3.1 base score of 9.9 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/grafana/grafana-image-renderer/releases/tag/v4.0.17Refgrafana.com/security/security-advisories/cve-2025-11539/

How CyberStrike helps

Frequently asked questions

What is CVE-2025-11539?

CVE-2025-11539 is a critical-severity vulnerability. It was published on October 9, 2025 and has a CVSS 3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2025-11539?

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-11539?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-11539?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-11539 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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