CVE-2026-15583: Grafana MCP Server 0.0.0 through 0.17.1

CVE-2026-15583. CVSS 3.1 base score 8.6 (HIGH, Vendor/CNA). EPSS 0.00529 (percentile 0.43956), scored 24-Oct-2026.

Affected technology

Grafana MCP Server · 0.0.0 through 0.17.1
Grafana

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An unauthenticated remote attacker can exfiltrate the server's environment-configured Grafana service-account token by supplying a crafted X-Grafana-URL request header. Vendor/CNA’s CVSS 3.1 assessment (base score 8.6/10) rates confidentiality impact as high; integrity and availability impact as none.

Published 25-Oct-2026 01:29 UTC

CWE: CWE-610
CCR priority: 34.5 /100 (P4)
CVSS 3.1: 8.6 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N · Vendor/CNA
EPSS: 0.00529 · percentile 0.43956 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-15583.html