CVE-2026-79538

critical · 9.8

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).

9.8

CVSS

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EPSS (exploit prob.)

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EPSS percentile

2026-09-29

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-94

References

https://github.com/metatool-ai/metamcp
https://www.traceforce.ai/security-advisories/cve-2026-79538

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-79538