CVE-2026-49353EPSS p27.1%

CVE-2026-49353CVE-2026-49353

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.

Scoring

CVSS 7.5 ()
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
EPSS0.36% probability of exploitation · percentile 27.1% · 2026-10-05T12:00:23Z
Last modified2026-07-16
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.