CVE-2026-19516 PUBLISHED

CVE-2026-19516 CVE Record

Assigner: GRAFANA
Reserved: 11.08.2026 Published: 11.08.2026 Updated: 11.08.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
CVSS Score: 9.1

Product Status

Vendor Grafana
Product Grafana MCP Server
Versions Default: unaffected
  • affected from 0.0.0 to 1.0.0 (incl.)
Vendor Grafana
Product mcp-grafana
Versions Default: unaffected
  • affected from 0.0.0 to 1.0.0 (incl.)

Credits

  • foguel (Researcher) finder

References

Problem Types

  • CWE-918 CWE