CVE-2026-15583

HIGH

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

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-15583. PoCs published by codeb0ssx.

AI-analyzed exploit summary The repository contains obfuscated Python code using PyArmor, a commercial code protection tool. The main script (`CVE-2026-15583.py`) loads an encrypted payload with no clear exploit logic, while the `pytransform` module is a known PyArmor component used to decrypt and execute obfuscated code. The presence of binary blobs and lack of technical details about the vulnerability suggest malicious intent.

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.

Exploits (1)

github TROJAN
by codeb0ssx · pythonpoc
https://github.com/codeb0ssx/CVE-2026-15583-PoC

The repository contains obfuscated Python code using PyArmor, a commercial code protection tool. The main script (`CVE-2026-15583.py`) loads an encrypted payload with no clear exploit logic, while the `pytransform` module is a known PyArmor component used to decrypt and execute obfuscated code. The presence of binary blobs and lack of technical details about the vulnerability suggest malicious intent.

Classification
Trojan 99%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: Unknown (claimed: Grafana, but no evidence in code)
No auth needed
Prerequisites: Python environment · Target system with PyArmor-compatible architecture
mistral-large-3 · analyzed Jul 18, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 8.6
EPSS 0.0049
EPSS Percentile 39.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-610
Status published
Products (1)
Grafana/Grafana MCP Server 0.0.0 - 0.17.1
Published Jul 15, 2026
Tracked Since Jul 15, 2026