Description (CNA)
A caller-supplied X-Grafana-URL request header controls the destination of mcp-grafana's outbound requests, and the grafana_api_request tool lets the caller also choose the HTTP method, path, and body. Because the destination is not restricted to the configured Grafana instance, a caller can direct requests at internal, loopback, and link-local network services (including metadata endpoints) and read the responses, resulting in server-side request forgery. The fix for CVE-2026-15583 prevented the configured service-account token from being sent to unintended destinations but did not restrict the destinations themselves.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Grafana / Grafana MCP Server | affected 0.0.0 through 1.0.0 |
| Grafana / mcp-grafana | affected 0.0.0 through 1.0.0 |
CWE
CWE-918
References
ADP enrichment
No English description supplied.
No references supplied.