CVE-2026-49353

Published: Jul 15, 2026Modified: Jul 16, 2026Deferred

7.5

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N

Exploitability: 2.2 / Impact: 4.7

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-290

Authentication Bypass by Spoofing

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

References (5)

https://github.com/decolua/9router/commit/5e1c1261368e06dced1cbc650684561b2c8844db

Source: security-advisories@github.com

https://github.com/decolua/9router/commit/bb86808582067e4fc6f004508a919efb9970d1d5

Source: security-advisories@github.com

https://github.com/decolua/9router/releases/tag/v0.4.46

Source: security-advisories@github.com

https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf

Source: security-advisories@github.com

https://github.com/decolua/9router/security/advisories/GHSA-6g2f-w7g3-77vf

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.