Fix Security Misconfiguration in Chi
Chi is a minimalist Go router, but 'minimalist' means 'unprotected' out of the box. Security misconfigurations in Chi typically involve missing middleware for panic recovery, lack of request timeouts, and omitted security headers. Running a raw Chi router without a hardened middleware stack leaves your service vulnerable to DoS, clickjacking, and information disclosure through stack traces.
The Vulnerable Pattern
func main() { r := chi.NewRouter()// VULNERABILITY: No recovery middleware (panic leaks stack traces) // VULNERABILITY: No timeout (susceptible to Slowloris/resource exhaustion) // VULNERABILITY: No security headers (XSS/Clickjacking risks) r.Get("/api/data", func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("sensitive data")) }) http.ListenAndServe(":8080", r)
}
The Secure Implementation
The secure implementation fixes three critical misconfigurations. First, it adds 'middleware.Recoverer' to catch panics; without this, an unhandled error could crash the entire binary or leak internal source paths in the response. Second, it implements both middleware-level and server-level timeouts to kill hanging connections, mitigating Slowloris attacks. Finally, it manually injects security headers like X-Frame-Options and CSP, which Chi does not provide by default, shielding the application from UI redressing and unauthorized script execution.
func main() { r := chi.NewRouter()// 1. Recover from panics to prevent process crashes and info leaks r.Use(middleware.Recoverer) // 2. Set strict timeouts to prevent DoS r.Use(middleware.Timeout(15 * time.Second)) // 3. Inject essential security headers r.Use(func(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Header().Set("X-Content-Type-Options", "nosniff") w.Header().Set("X-Frame-Options", "DENY") w.Header().Set("Content-Security-Policy", "default-src 'self'") next.ServeHTTP(w, r) }) }) r.Get("/api/data", func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("hardened response")) }) srv := &http.Server{ Addr: ":8080", Handler: r, ReadTimeout: 5 * time.Second, WriteTimeout: 10 * time.Second, } srv.ListenAndServe()
}
Your Chi API
might be exposed to Security Misconfiguration
74% of Chi apps fail this check. Hackers use automated scanners to find this specific flaw. Check your codebase before they do.
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