High severity8.6NVD Advisory· Published Jul 15, 2026· Updated Jul 15, 2026

CVE-2026-15583

Description

A confused-deputy flaw in Grafana MCP Server 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 also enables SSRF against arbitrary internal services, including cloud metadata endpoints.

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Affected products

Grafana/Grafana MCP Serverllm-create
Grafana/Grafanallm-fuzzy

Patches

Vulnerability mechanics

References

grafana.com/security/security-advisories/cve-2026-15583nvd

News mentions

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