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.
Severity (CVSS)
| Base score | 7.5 |
|---|---|
| Severity | High |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N |
| Provided by | CNA |
Weaknesses
- CWE-290 — CWE-290: Authentication Bypass by Spoofing
Affected products
| Vendor | Product | Versions |
|---|---|---|
| decolua | 9router | <= 0.4.45 |
References
- https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf (x_refsource_CONFIRM)
- https://github.com/decolua/9router/commit/5e1c1261368e06dced1cbc650684561b2c8844db (x_refsource_MISC)
- https://github.com/decolua/9router/commit/bb86808582067e4fc6f004508a919efb9970d1d5 (x_refsource_MISC)
- https://github.com/decolua/9router/releases/tag/v0.4.46 (x_refsource_MISC)
Generated from the official CVE List on 16 Jul 2026 07:01 UTC.