diff --git a/src/Symfony/Component/HttpKernel/Controller/ArgumentResolver/RequestPayloadValueResolver.php b/src/Symfony/Component/HttpKernel/Controller/ArgumentResolver/RequestPayloadValueResolver.php
index c35d5e7e29381..59a1030ca807d 100644
--- a/src/Symfony/Component/HttpKernel/Controller/ArgumentResolver/RequestPayloadValueResolver.php
+++ b/src/Symfony/Component/HttpKernel/Controller/ArgumentResolver/RequestPayloadValueResolver.php
@@ -170,7 +170,14 @@ public function onKernelControllerArguments(ControllerArgumentsEvent $event): vo
                 };
             }
 
-            $arguments[$i] = $payload;
+            if ($argument->metadata->isVariadic()) {
+                if (!\is_array($payload) || !\array_is_list($payload)) {
+                    throw HttpException::fromStatusCode($validationFailedCode);
+                }
+                \array_splice($arguments, $i, \count($payload), $payload);
+            } else {
+                $arguments[$i] = $payload;
+            }
         }
 
         $event->setArguments($arguments);
@@ -233,6 +240,11 @@ private function mapRequestPayload(Request $request, ArgumentMetadata $argument,
 
     private function mapUploadedFile(Request $request, ArgumentMetadata $argument, MapUploadedFile $attribute): UploadedFile|array|null
     {
-        return $request->files->get($attribute->name ?? $argument->getName(), []);
+        $default = null;
+        if ($argument->isVariadic() || 'array' === $argument->getType()) {
+            $default = [];
+        }
+
+        return $request->files->get($attribute->name ?? $argument->getName(), $default);
     }
 }
diff --git a/src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolver/UploadedFileValueResolverTest.php b/src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolver/UploadedFileValueResolverTest.php
index 5eb0d32483ed5..8817ee64ae6ae 100644
--- a/src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolver/UploadedFileValueResolverTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/Controller/ArgumentResolver/UploadedFileValueResolverTest.php
@@ -68,7 +68,7 @@ public function testEmpty(RequestPayloadValueResolver $resolver, Request $reques
         $attribute = new MapUploadedFile();
         $argument = new ArgumentMetadata(
             'qux',
-            UploadedFile::class,
+            'array',
             false,
             false,
             null,
@@ -82,12 +82,70 @@ static function () {},
             $request,
             HttpKernelInterface::MAIN_REQUEST
         );
+
         $resolver->onKernelControllerArguments($event);
         $data = $event->getArguments()[0];
 
         $this->assertEmpty($data);
     }
 
+    /**
+     * @dataProvider provideContext
+     */
+    public function testNotNullableFile(RequestPayloadValueResolver $resolver, Request $request)
+    {
+        $attribute = new MapUploadedFile();
+        $argument = new ArgumentMetadata(
+            'qux',
+            UploadedFile::class,
+            false,
+            false,
+            null,
+            false,
+            [$attribute::class => $attribute]
+        );
+        $event = new ControllerArgumentsEvent(
+            $this->createMock(HttpKernelInterface::class),
+            static function () {},
+            $resolver->resolve($request, $argument),
+            $request,
+            HttpKernelInterface::MAIN_REQUEST
+        );
+
+        $this->expectException(HttpException::class);
+
+        $resolver->onKernelControllerArguments($event);
+    }
+
+    /**
+     * @dataProvider provideContext
+     */
+    public function testNullableFile(RequestPayloadValueResolver $resolver, Request $request)
+    {
+        $attribute = new MapUploadedFile();
+        $argument = new ArgumentMetadata(
+            'qux',
+            UploadedFile::class,
+            false,
+            true,
+            null,
+            true,
+            [$attribute::class => $attribute]
+        );
+        $event = new ControllerArgumentsEvent(
+            $this->createMock(HttpKernelInterface::class),
+            static function () {},
+            $resolver->resolve($request, $argument),
+            $request,
+            HttpKernelInterface::MAIN_REQUEST
+        );
+
+        $resolver->onKernelControllerArguments($event);
+        $data = $event->getArguments()[0];
+
+        $this->assertNull($data);
+    }
+
     /**
      * @dataProvider provideContext
      */
@@ -269,7 +327,7 @@ static function () {},
         $resolver->onKernelControllerArguments($event);
 
         /** @var UploadedFile[] $data */
-        $data = $event->getArguments()[0];
+        $data = $event->getArguments();
 
         $this->assertCount(2, $data);
         $this->assertSame('file-small.txt', $data[0]->getFilename());

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