diff --git a/wp-includes/class-wp-image-editor-gd.php b/wp-includes/class-wp-image-editor-gd.php
index 4fa1fe24fa..abf03c869b 100644
--- a/wp-includes/class-wp-image-editor-gd.php
+++ b/wp-includes/class-wp-image-editor-gd.php
@@ -93,13 +93,20 @@ class WP_Image_Editor_GD extends WP_Image_Editor {
 		// Set artificially high because GD uses uncompressed images in memory.
 		wp_raise_memory_limit( 'image' );
 
-		$this->image = @imagecreatefromstring( file_get_contents( $this->file ) );
+		$file_contents = @file_get_contents( $this->file );
+
+		if ( ! $file_contents ) {
+			return new WP_Error( 'error_loading_image', __( 'File doesn’t exist?' ), $this->file );
+		}
+
+		$this->image = @imagecreatefromstring( $file_contents );
 
 		if ( ! is_gd_image( $this->image ) ) {
 			return new WP_Error( 'invalid_image', __( 'File is not an image.' ), $this->file );
 		}
 
 		$size = @getimagesize( $this->file );
+
 		if ( ! $size ) {
 			return new WP_Error( 'invalid_image', __( 'Could not read image size.' ), $this->file );
 		}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e3d6449671..b64a1ba947 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-alpha-49018';
+$wp_version = '5.6-alpha-49019';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.