diff --git a/src/Illuminate/Foundation/Application.php b/src/Illuminate/Foundation/Application.php
index c061c731ce6..f60371a68b8 100755
--- a/src/Illuminate/Foundation/Application.php
+++ b/src/Illuminate/Foundation/Application.php
@@ -254,7 +254,10 @@ public static function inferBasePath()
     {
         return match (true) {
             isset($_ENV['APP_BASE_PATH']) => $_ENV['APP_BASE_PATH'],
-            default => dirname(array_keys(ClassLoader::getRegisteredLoaders())[0]),
+            default => dirname(array_values(array_filter(
+                array_keys(ClassLoader::getRegisteredLoaders()),
+                fn ($path) => ! str_contains($path, '/vendor/'),
+            ))[0]),
         };
     }