{"cve":"CVE-2026-49353","nvd":{"published":"2026-07-15T21:16:53.870","modified":"2026-10-24T21:10:00.130","status":"Deferred","description":"9Router is an AI router & token saver. In 0.4.45 and earlier, 9Router's src/dashboardGuard.js local-only access gate used Host and Origin headers in isLocalRequest() to protect /api/mcp/*, /api/tunnel/*, and /api/cli-tools/*, allowing header spoofing in reverse proxy or tunnel deployments to reach MCP child process stdin paths.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N","score":7.5},"cwes":["CWE-290"],"references":["https://github.com/decolua/9router/commit/5e1c1261368e06dced1cbc650684561b2c8844db","https://github.com/decolua/9router/commit/bb86808582067e4fc6f004508a919efb9970d1d5","https://github.com/decolua/9router/releases/tag/v0.4.46","https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf","https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-49353","score":0.00335,"percentile":0.26639,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-6g2f-w7g3-77vf","url":"https://osv.dev/vulnerability/GHSA-6g2f-w7g3-77vf","summary":"9router has an Incomplete Fix: Local-Only Access Gate Bypass in 9router via Host Header SpoofING","modified":"2026-07-02T21:26:28.689915Z","packages":[{"ecosystem":"npm","name":"9router","purl":"pkg:npm/9router","ranges":["<=0.4.55"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}