What is GHSA-4qvr-m43m-5qgr?

GHSA-4qvr-m43m-5qgr is a security advisory published by GitHub Security Advisories with Critical severity. metatool-ai MetaMCP up to and including 2.4.22 is vulnerable to Code Execution in the internal...

Which CVE IDs does GHSA-4qvr-m43m-5qgr cover?

GHSA-4qvr-m43m-5qgr covers the following CVE IDs: CVE-2026-79538. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4qvr-m43m-5qgr?

GHSA-4qvr-m43m-5qgr has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-4qvr-m43m-5qgrCriticalCVSS 9.8

metatool-ai MetaMCP up to and including 2.4.22 is vulnerable to Code Execution in the internal...

Vendor

GitHub Security Advisories

Published

September 29, 2026

Last Modified

September 29, 2026

🔗 CVE IDs covered (1)

CVE-2026-79538 →

📋 Description

metatool-ai MetaMCP up to and including 2.4.22 is vulnerable to Code Execution in the internal MCP inspector proxy endpoint GET /mcp-proxy/server/stdio (createTransport, STDIO branch, routers/mcp-proxy/server.ts).

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-79538
https://github.com/metatool-ai/metamcp
https://www.traceforce.ai/security-advisories/cve-2026-79538
https://github.com/advisories/GHSA-4qvr-m43m-5qgr