CVE-2026-49353

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CVSS 3.1

7.5 high

EPSS

<1%p29

Published

Jul 15, 2026 (Jul 15, 2026)

Modified

Jul 16, 2026

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.

Weakness: CWE-290
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.4%)

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