{"schema":"threatline.record/2","record":{"id":"CVE-2026-79538","aliases":[],"summary":"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-prox","details":"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).","categories":["Network & edge"],"product":"n/a","vendor":"n/a","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-79538","source_modified_at":"2026-09-29T20:31:12.917Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"n/a","vendor":"n/a","versions":[{"version":"n/a","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00435,"percentile":0.36793,"score_date":"2026-10-23"},"published_at":"2026-09-29T00:00:00.000Z","modified_at":"2026-09-29T20:31:12.917Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-79538","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-29T20:31:12.917Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-79538","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/metatool-ai/metamcp"},{"source":"CVE List","url":"https://www.traceforce.ai/security-advisories/cve-2026-79538"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"total","assessed_at":"2026-09-29T20:30:41.551469Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"summary-specific-product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-29T20:31:12.917Z","content_hash":"9a90b1e4631f02ea8d3a214417a6c54dbeec7f95ec9ddd25a668ae3899595328"}}