Grafana MCP server-side request forgery via X-Grafana-URL header
High
| Advisory ID: | CVE-2026-15583 |
| Published: | 2026-07-15 |
| Product: | Grafana MCP |
| CVSS Score: | 8.6 |
| CVSS Vector: | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| Fixed Versions: | >=0.17.1 |
Summary
A vulnerability has been discovered in the mcp-grafana project (https://github.com/grafana/mcp-grafana) where a confused-deputy flaw allows an unauthenticated remote attacker to exfiltrate the server’s environment-configured Grafana service-account token by supplying a crafted X-Grafana-URL request header. This vulnerability is classified as Server-Side Request Forgery (SSRF) and also enables credentialed SSRF against arbitrary internal services, including cloud metadata endpoints. Upgrade to a fixed version listed below.