{"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","slug":"CVE-2025-11539","body":"## Overview\n\nGrafana 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.\n\nInstances are vulnerable if:\n\n1. The default token (\"authToken\") is not changed, or is known to the attacker.\n2. The attacker can reach the image renderer endpoint.\nThis issue affects grafana-image-renderer: from 1.0.0 through 4.0.16.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}