CVE-2026-55501

The CVE concerns 9router prior to version 0.4.80, where the login rate limiter uses client identity from the attacker-controlled X-Forwarded-For header in src/lib/auth/loginLimiter.js. This allows remote attackers to rotate X-Forwarded-For per attempt, creating a fresh rate-limit bucket each time...

9router: Login brute-force protection bypass via spoofed X-Forwarded-For header

Summary The 9router dashboard login rate limiter derives the client identity from the attacker-controlled X-Forwarded-For HTTP header. When 9router is directly exposed, or deployed behind a reverse proxy that does not overwrite untrusted forwarding headers, a remote attacker can rotate the...

PT-2026-56084

Name of the Vulnerable Software and Affected Versions 9Router versions prior to 0.4.80 Description The dashboard login rate limiter derives client identity from the X-Forwarded-For HTTP header, which is controlled by the user. When the application is directly exposed or deployed behind a reverse...