SEPTEMBER 9, 2026
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Case File

CVE-2026-46339

CRITICAL · CVSS 10 EPSS 2.40% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-15 · Last synced 2026-08-14

CyberRota Analysis

AI-Generated

The vulnerability in 9Router's middleware allows unauthenticated users to register custom plugins and execute commands via the MCP bridge, potentially leading to unauthorized access and control over the router. This critical flaw affects versions 0.4.30 to 0.4.37 and should be prioritized for remediation by all users of the affected software to mitigate the risk of exploitation. Immediate updates to version 0.4.37 or later are essential to secure the system.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-46339
Severity
CRITICAL
CVSS
10
EPSS
2.40%

Original NVD Description

9Router is an AI router & token saver. From 0.4.30 until 0.4.37, 9Router's src/proxy.js middleware did not protect /api/cli-tools/* and /api/mcp/*, allowing unauthenticated registration of customPlugins through src/app/api/cli-tools/cowork-settings/route.js and command execution through the MCP bridge. This vulnerability is fixed in 0.4.37.