CVE-2026-15583highCWE-610

CVE-2026-15583: high-severity vulnerability in Grafana MCP Server

SSRF (confused deputy) in Grafana MCP Server via X-Grafana-URL header

Published · Updated

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.6epss 0.5%
from disclosure to weapon2 days
Published on NVDJul 15
1st PoC+2d
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Affected products
Grafana · Grafana MCP Server
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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