CVE-2026-56682

9Router is an AI router & token saver. Prior to 0.5.6, 9Router deployments that allow requests to reach Next.js without the sanitizing custom-server.js wrapper use the client-supplied X-9r-Real-Ip value as the bucket key in getClientIp, checkLock, and recordFail in src/lib/auth/loginLimiter.js for POST /api/auth/login. A remote unauthenticated attacker can rotate the header on every password guess so each request uses a new failed-attempt bucket and the five-attempt progressive lockout never returns HTTP 429. This permits unthrottled password guessing against the dashboard login and can lead to an administrative session if the password is recovered. This issue is fixed in version 0.5.6.
Configurations

No configuration.

History

22 Sep 2026, 18:17

Type Values Removed Values Added
References () https://github.com/decolua/9router/security/advisories/GHSA-32gc-64m7-hj7v - () https://github.com/decolua/9router/security/advisories/GHSA-32gc-64m7-hj7v -

22 Sep 2026, 17:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-22 17:17

Updated : 2026-09-22 18:17


NVD link : CVE-2026-56682

Mitre link : CVE-2026-56682

CVE.ORG link : CVE-2026-56682


JSON object : View

Products Affected

No product.

CWE
CWE-307

Improper Restriction of Excessive Authentication Attempts

CWE-807

Reliance on Untrusted Inputs in a Security Decision