CVE-2026-19516 - CVE-2026-19516 CVE Record
CVE ID :CVE-2026-19516
Published : Aug. 11, 2026, 6:17 a.m. | 1 hour, 11 minutes ago
Description :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.
Severity: 9.1 | CRITICAL
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Published : Aug. 11, 2026, 6:17 a.m. | 1 hour, 11 minutes ago
Description :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.
Severity: 9.1 | CRITICAL
Visit the link for more details, such as CVSS details, affected products, timeline, and more...