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Critical 9.1Published Aug 11, 2026

CVE-2026-19516CVE-2026-19516 CVE Record

Updated under an hour ago ()

Does this affect you?

It affects Grafana MCP Server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Weakness (CWE)
CWE-918
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GRAFANA
NVD analysis
Awaiting Analysis
Record last updated
Aug 27, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Grafana Grafana MCP Server
grafana:mcp_server (from the name)
from 0.0.0 through 1.0.0
CNA record
Grafana mcp-grafana
grafana:mcp_grafana (from the name)
from 0.0.0 through 1.0.0
CNA record

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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