Report: Latest: CVE-2026-41893 - Signal K Server's WebSocket Login Endpoint Lacks Rate Limiting (Credential Brute...

Report: Latest: CVE-2026-41893 - Signal K Server's WebSocket Login Endpoint Lacks Rate Limiting (Credential Brute...

CVE ID :CVE-2026-41893 Published : May 9, 2026, 7:12 p.m. | 42 minutes ago Description :Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.25.0, the HTTP login endpoints (POST /login and POST /signalk/v1/auth/login) are protected by express-rate-limit (default: 100 attempts per 10-minute window, configurable via HTTP_RATE_LIMITS). The WebSocket login path — sending {login: {username, password}} messages over an established WebSocket connection — calls app.securityStrategy.login() directly without any rate limiting. An attacker can bypass HTTP rate limiting entirely by opening a WebSocket connection and attempting unlimited password guesses at the speed bcrypt allows (~20 attempts/sec with 10 salt rounds). This issue has been patched in version 2.25.0. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Published
May 9, 2026