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.
Published: 2026-08-11
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 11 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 11 Aug 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Grafana
Grafana grafana Mcp Server
Vendors & Products Grafana
Grafana grafana Mcp Server

Tue, 11 Aug 2026 05:45:00 +0000

Type Values Removed Values Added
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.
Title CVE-2026-19516 CVE Record
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L'}


Subscriptions

Grafana Grafana Mcp Server
cve-icon MITRE

Status: PUBLISHED

Assigner: GRAFANA

Published:

Updated: 2026-08-11T17:05:49.134Z

Reserved: 2026-08-11T05:23:23.935Z

Link: CVE-2026-19516

cve-icon Vulnrichment

Updated: 2026-08-11T17:05:31.422Z

cve-icon NVD

Status : Received

Published: 2026-08-11T06:17:13.433

Modified: 2026-08-11T17:17:48.383

Link: CVE-2026-19516

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-11T14:00:14Z

Weaknesses