diff --git a/internal/runtime/executor/proxy_helpers.go b/internal/runtime/executor/proxy_helpers.go
index 4979e9f5..ab0f626a 100644
--- a/internal/runtime/executor/proxy_helpers.go
+++ b/internal/runtime/executor/proxy_helpers.go
@@ -87,9 +87,12 @@ func buildProxyTransport(proxyURL string) *http.Transport {
 	// Handle different proxy schemes
 	if parsedURL.Scheme == "socks5" {
 		// Configure SOCKS5 proxy with optional authentication
-		username := parsedURL.User.Username()
-		password, _ := parsedURL.User.Password()
-		proxyAuth := &proxy.Auth{User: username, Password: password}
+		var proxyAuth *proxy.Auth
+		if parsedURL.User != nil {
+			username := parsedURL.User.Username()
+			password, _ := parsedURL.User.Password()
+			proxyAuth = &proxy.Auth{User: username, Password: password}
+		}
 		dialer, errSOCKS5 := proxy.SOCKS5("tcp", parsedURL.Host, proxyAuth, proxy.Direct)
 		if errSOCKS5 != nil {
 			log.Errorf("create SOCKS5 dialer failed: %v", errSOCKS5)
diff --git a/internal/util/proxy.go b/internal/util/proxy.go
index fa51dd43..aea52ba8 100644
--- a/internal/util/proxy.go
+++ b/internal/util/proxy.go
@@ -25,9 +25,12 @@ func SetProxy(cfg *config.SDKConfig, httpClient *http.Client) *http.Client {
 		// Handle different proxy schemes.
 		if proxyURL.Scheme == "socks5" {
 			// Configure SOCKS5 proxy with optional authentication.
-			username := proxyURL.User.Username()
-			password, _ := proxyURL.User.Password()
-			proxyAuth := &proxy.Auth{User: username, Password: password}
+			var proxyAuth *proxy.Auth
+			if proxyURL.User != nil {
+				username := proxyURL.User.Username()
+				password, _ := proxyURL.User.Password()
+				proxyAuth = &proxy.Auth{User: username, Password: password}
+			}
 			dialer, errSOCKS5 := proxy.SOCKS5("tcp", proxyURL.Host, proxyAuth, proxy.Direct)
 			if errSOCKS5 != nil {
 				log.Errorf("create SOCKS5 dialer failed: %v", errSOCKS5)