{"id":"CVE-2026-46339","revision":"51ec6765e3fb42caa0a117227f90c2f4","records":[{"revision":"51ec6765e3fb42caa0a117227f90c2f4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-46339","aliases":[],"title":"9Router: Unauthenticated Remote Code Execution via unprotected MCP custom plugin routes","description":"9Router is an AI router & token saver. From 0.4.30 until 0.4.37, 9Router's src/proxy.js middleware did not protect /api/cli-tools/* and /api/mcp/*, allowing unauthenticated registration of customPlugins through src/app/api/cli-tools/cowork-settings/route.js and command execution through the MCP bridge. This vulnerability is fixed in 0.4.37.","state":0,"publishedAt":"2026-07-15T20:41:06.937+00:00","modifiedAt":"2026-07-16T12:55:46.031+00:00","affected":[{"ecosystem":"Vendor product","name":"9router","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"decolua\",\n                    \"product\": \"9router\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 0.4.30, < 0.4.37\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10,"severity":"CRITICAL"}],"references":["https://github.com/decolua/9router/security/advisories/GHSA-fhh6-4qxv-rpqj","https://github.com/decolua/9router/commit/992f4db4a0d858bcc86b4786f2abab117a6ccdf8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46339","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-46339","identifiers":["CVE-2026-46339"]},"retained":false,"historicalAffected":[]}],"coverage":[]}