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CVE-2026-15583— SSRF (confused deputy) in Grafana MCP Server via X-Grafana-URL header

Quick assessment

Affected
Grafana Grafana MCP Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Grafana Grafana MCP Server是Grafana公司的一款数据可视化与监控服务器软件。 Grafana MCP Server 0.17.1及之前版本存在输入验证错误漏洞，该漏洞源于混淆代理问题，可能导致未经身份验证的远程攻击者通过提供特制的X-Grafana-URL请求标头，获取服务器环境配置的Grafana服务账户令牌，并可对任意内部服务发起SSRF攻击，包括云元数据端点。

CVSS 8.6 · High EPSS 0.53% · P42

Affected Version Matrix 1

VendorProduct Version RangeStatus
Grafana Grafana MCP Server 0.0.0≤ 0.17.1 affected
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I. Basic Information for CVE-2026-15583

Vulnerability Information
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Vulnerability Title
SSRF (confused deputy) in Grafana MCP Server via X-Grafana-URL header
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Grafana MCP Server 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grafana Grafana MCP Server是Grafana公司的一款数据可视化与监控服务器软件。 Grafana MCP Server 0.17.1及之前版本存在输入验证错误漏洞，该漏洞源于混淆代理问题，可能导致未经身份验证的远程攻击者通过提供特制的X-Grafana-URL请求标头，获取服务器环境配置的Grafana服务账户令牌，并可对任意内部服务发起SSRF攻击，包括云元数据端点。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Grafana Grafana MCP Server 0.0.0 ~ 0.17.1 -

II. Public POCs for CVE-2026-15583

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III. Intelligence Information for CVE-2026-15583

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Vendor Advisories for CVE-2026-15583 (1)

IV. Related Vulnerabilities

Same product: Grafana MCP Server
Same vendor: Grafana

V. Comments for CVE-2026-15583

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