{"id":"CVE-2026-79538","published":"2026-09-29T20:17:27.510","lastModified":"2026-09-29T21:28:02.477","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).","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-94"],"vendors":[],"products":[],"references":[{"url":"https://github.com/metatool-ai/metamcp","tags":[]},{"url":"https://www.traceforce.ai/security-advisories/cve-2026-79538","tags":[]}],"exploitRefs":[{"url":"https://github.com/metatool-ai/metamcp","tags":[]}],"hasPoc":true,"ai":{"summary":"The vulnerability allows for code execution via the internal MCP inspector proxy endpoint, posing a critical risk due to the high severity and potential for remote exploitation.","exploitability":"Exploitation is relatively straightforward given the public exploit references, requiring only access to the affected endpoint.","blast_radius":"If exploited, this flaw could lead to full system compromise, allowing attackers to execute arbitrary code with high privileges.","remediation":"Upgrade to metatool-ai MetaMCP version 2.4.23 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","web","proxy","code-execution"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-30T08:48:13.599Z"}}