CVE-2026-15583

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.

CVSS v3.1

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS

0.53% chance of exploitation in the next 30 days, 43th percentile

Published

2026-07-15

Updated

2026-08-27

Proof-of-concept exploits (1)

• codeb0ssx/CVE-2026-15583-PoC0★ · 2026-07-17

References

• CVE Record
• NVD entry

Related

• CVE-2025-14847
• CVE-2025-68645
• CVE-2026-21445
• CVE-2026-46442
• CVE-2026-60137
• CVE-2026-63030