CVE-2026-79538

CRITICAL 9.8

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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).

Vendor	n/a
Product	n/a
Published	Sep 29, 2026
Last Updated	Sep 29, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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