diff --git a/services/nginx/app/index.php b/services/nginx/app/index.php
index 53b1ef5f..ae2462d2 100644
--- a/services/nginx/app/index.php
+++ b/services/nginx/app/index.php
@@ -83,12 +83,14 @@ spl_autoload_register(function (string $class): void {
     if (defined('redis')) {
         try {
             $cached = redis->get($cache_key);
-            if (is_string($cached) && $cached !== '' && is_file($cached) && $isPathInside($cached, $wdReal)) {
-                require_once $cached;
-                if ($is_loaded($class)) {
-                    return;
+            if (is_string($cached) && $cached !== '' && is_file($cached)) {
+                if ($isPathInside($cached, $wdReal)) {
+                    require_once $cached;
+                    if ($is_loaded($class)) {
+                        return;
+                    }
                 }
-                // Stale class mapping in cache, continue with normal lookup.
+                // Stale, invalid, or unsafe class mapping in cache; continue with normal lookup.
                 redis->delete($cache_key);
             } elseif (is_string($cached) && $cached !== '') {
                 // Remove non-existing cached path to avoid repeated failed lookups.