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CVE-2026-15583

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

HIGH
8.6
CVSS Score
Published: July 15, 2026 at 07:29 AM UTC
Updated: October 24, 2026 at 10:10 PM UTC
1 product affected across 1 vendorGrafana MCP Server

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Severity
HIGH8.6
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Grafana MCP Server· Grafanagrafana-plugin
90%
0.0.0 ≤ v ≤ 0.17.10.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://grafana.com/security/security-advisories/cve-2026-15583

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHGRAFANA
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-610

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