CVE-2026-41893: falha de alta gravidade em signalk-server
Signal K Server's WebSocket Login Endpoint Lacks Rate Limiting (Credential Brute-Force)
Publicada em · Atualizada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.7epss 0.3%
probabilidade de exploração
0.3%top 74% das CVEs
exploração observada
nãonenhuma fonte reporta
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Produtos afetados
SignalK · signalk-serverCVEs relacionadas — signalk-server
No mesmo produto, das mais perigosas para as menos.
CVE-2025-66398CRITICALSignal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE)EPSS 19.9%CVE-2026-23515CRITICALRCE - Command Injection in Signal K set-system-time pluginEPSS 4.6%CVE-2025-68273MEDIUMSignal K Server Vulnerable to Unauthenticated Information Disclosure via Exposed EndpointsEPSS 0.8%CVE-2025-68619HIGHSignal K Server Vulnerable to Remote Code Execution via Malicious npm PackageEPSS 0.7%CVE-2025-68272HIGHSignal K Server Vulnerable to Denial of Service via Unrestricted Access Request FloodingEPSS 0.6%CVE-2025-68620CRITICALSignal K Server vulnerable to JWT Token Theft via WebSocket Enumeration and Unauthenticated PollingEPSS 0.5%