faye — Vulnerabilities & Security Advisories 3

Faye is a real-time messaging library primarily used for building chat applications and live data synchronization features in web applications. Historically, Faye has been susceptible to cross-site scripting (XSS), remote code execution (RCE), and privilege escalation vulnerabilities, particularly in versions prior to 1.2.2. The library's event-driven architecture and WebSocket support have introduced security challenges in input validation and access control. While no major public incidents have been widely documented, the three CVEs associated with Faye highlight risks in server-side request forgery and insecure object deserialization, emphasizing the need for proper input sanitization and regular updates in production environments.