diff --git a/src/Illuminate/Http/Middleware/TrustProxies.php b/src/Illuminate/Http/Middleware/TrustProxies.php
index 81906c1f1951..cd5c63ecbd0e 100644
--- a/src/Illuminate/Http/Middleware/TrustProxies.php
+++ b/src/Illuminate/Http/Middleware/TrustProxies.php
@@ -49,6 +49,12 @@ protected function setTrustedProxyIpAddresses(Request $request)
     {
         $trustedIps = $this->proxies() ?: config('trustedproxy.proxies');
 
+        if (is_null($trustedIps) &&
+            (($_ENV['LARAVEL_CLOUD'] ?? false) === '1' ||
+            ($_SERVER['LARAVEL_CLOUD'] ?? false) === '1')) {
+            $trustedIps = '*';
+        }
+
         if ($trustedIps === '*' || $trustedIps === '**') {
             return $this->setTrustedProxyIpAddressesToTheCallingIp($request);
         }