symfony
diff --git a/‎src/Symfony/Component/Validator/Constraints/Image.php
Lines changed: 1 addition & 0 deletions b/‎src/Symfony/Component/Validator/Constraints/Image.php
Lines changed: 1 addition & 0 deletions
diff --git a/‎src/Symfony/Component/Validator/Constraints/ImageValidator.php
Lines changed: 14 additions & 0 deletions b/‎src/Symfony/Component/Validator/Constraints/ImageValidator.php
Lines changed: 14 additions & 0 deletions
@@ -61,6 +61,7 @@ class Image extends File
     public $allowSquare = true;
     public $allowLandscape = true;
     public $allowPortrait = true;
+    public $strict = false;
 
     // The constant for a wrong MIME type is taken from the parent class.
     public $mimeTypesMessage = 'This file is not a valid image.';
 
@@ -43,6 +43,20 @@ public function validate($value, Constraint $constraint)
             return;
         }
 
+        if ($constraint->strict) {
+            if (function_exists('imagecreatefromstring')) {
+                $resource = @imagecreatefromstring(file_get_contents($value));
+
+                if (false === $resource) {
+                    $this->context->buildViolation($constraint->mimeTypesMessage)
+                        ->setCode(Image::INVALID_MIME_TYPE_ERROR)
+                        ->addViolation();
+
+                    return;
+                }
+            }
+        }
+
         if (null === $constraint->minWidth && null === $constraint->maxWidth
             && null === $constraint->minHeight && null === $constraint->maxHeight
             && null === $constraint->minRatio && null === $constraint->maxRatio