Brute Force Affecting 9router package, versions <0.4.80
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Test your applications- Snyk IDSNYK-JS-9ROUTER-17875084
- published7 Jul 2026
- disclosed6 Jul 2026
- creditdinhvaren
Introduced: 6 Jul 2026
NewCVE-2026-55501 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade 9router to version 0.4.80 or higher.
Overview
9router is a 9Router CLI - Start and manage 9Router server
Affected versions of this package are vulnerable to Brute Force in the authentication process. An attacker can gain unauthorized access to administrative functions by sending repeated login attempts with different values in the X-Forwarded-For header, thereby circumventing rate-limiting and lockout mechanisms.