diff --git a/core/core.services.yml b/core/core.services.yml
index 6f8cce6..158adb7 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -343,6 +343,10 @@ services:
     arguments: ['@content_negotiation']
     tags:
       - { name: route_enhancer, priority: 10 }
+  route_special_attributes_subscriber:
+    class: Drupal\Core\EventSubscriber\SpecialAttributesRouteSubscriber
+    tags:
+      - { name: event_subscriber }
   controller.page:
     class: Drupal\Core\Controller\HtmlPageController
     arguments: ['@http_kernel']
diff --git a/core/lib/Drupal/Core/EventSubscriber/SpecialAttributesRouteSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/SpecialAttributesRouteSubscriber.php
new file mode 100644
index 0000000..f5bf1f4
--- /dev/null
+++ b/core/lib/Drupal/Core/EventSubscriber/SpecialAttributesRouteSubscriber.php
@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Core\EventSubscriber\SpecialAttributesRouteSubscriber.
+ */
+
+namespace Drupal\Core\EventSubscriber;
+
+use Drupal\Component\Utility\String;
+use Drupal\Core\Routing\RouteBuildEvent;
+use Drupal\Core\Routing\RoutingEvents;
+use Symfony\Cmf\Component\Routing\RouteObjectInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * Provides a route subscriber which checks for invalid pattern variables.
+ */
+class SpecialAttributesRouteSubscriber implements EventSubscriberInterface {
+
+  /**
+   * Checks for invalid pattern variables.
+   *
+   * @param \Drupal\Core\Routing\RouteBuildEvent $event
+   *   The event containing the build routes.
+   *
+   * @throws \InvalidArgumentException
+   *   Thrown when a reserved variable was used as route variable.
+   */
+  public function onRouteBuilding(RouteBuildEvent $event) {
+    $special_variables = array(
+      '_account',
+      'system_path',
+      '_maintenance',
+      '_legacy',
+      '_authentication_provider',
+      '_raw_variables',
+      RouteObjectInterface::ROUTE_OBJECT,
+      RouteObjectInterface::ROUTE_NAME,
+      '_content',
+      '_form',
+    );
+
+    foreach ($event->getRouteCollection()->all() as $route) {
+      if ($not_allowed_variables = array_intersect($route->compile()->getVariables(), $special_variables)) {
+        throw new \InvalidArgumentException(String::format('The following variables are reserved names by drupal: @variables', array('@variables' => implode(', ', $not_allowed_variables))));
+      }
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  static function getSubscribedEvents() {
+    $events[RoutingEvents::ALTER][] = 'onRouteBuilding';
+    return $events;
+  }
+
+}
diff --git a/core/tests/Drupal/Tests/Core/EventSubscriber/SpecialAttributesRouteSubscriberTest.php b/core/tests/Drupal/Tests/Core/EventSubscriber/SpecialAttributesRouteSubscriberTest.php
new file mode 100644
index 0000000..f5f8f25
--- /dev/null
+++ b/core/tests/Drupal/Tests/Core/EventSubscriber/SpecialAttributesRouteSubscriberTest.php
@@ -0,0 +1,118 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Tests\Core\EventSubscriber\SpecialAttributesRouteSubscriberTest.
+ */
+
+namespace Drupal\Tests\Core\EventSubscriber;
+
+use Drupal\Core\EventSubscriber\SpecialAttributesRouteSubscriber;
+use Drupal\Core\Routing\RouteBuildEvent;
+use Drupal\Tests\UnitTestCase;
+use Symfony\Cmf\Component\Routing\RouteObjectInterface;
+use Symfony\Component\Routing\Route;
+use Symfony\Component\Routing\RouteCollection;
+
+/**
+ * Tests the special attributes route subscriber.
+ *
+ * @see \Drupal\Core\EventSubscriber\SpecialAttributesRouteSubscriber
+ */
+class SpecialAttributesRouteSubscriberTest extends UnitTestCase {
+
+  /**
+   * The tested route subscriber.
+   *
+   * @var \Drupal\Core\EventSubscriber\SpecialAttributesRouteSubscriber
+   */
+  protected  $specialAttributesRouteSubscriber;
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Special attributes route subscriber',
+      'description' => 'Tests the special attributes route subscriber.',
+      'group' => 'System'
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $this->specialAttributesRouteSubscriber = new SpecialAttributesRouteSubscriber();
+  }
+
+  /**
+   * Provides a list of routes with invalid route variables.
+   *
+   * @return array
+   *   An array of invalid routes.
+   */
+  public function providerTestOnRouteBuildingInvalidVariables() {
+    $routes = array();
+    $routes[] = array(new Route('/test/{_account}'));
+    $routes[] = array(new Route('/test/{system_path}'));
+    $routes[] = array(new Route('/test/{_maintenance}'));
+    $routes[] = array(new Route('/test/{_legacy}'));
+    $routes[] = array(new Route('/test/{_authentication_provider}'));
+    $routes[] = array(new Route('/test/{' . RouteObjectInterface::ROUTE_OBJECT . '}'));
+    $routes[] = array(new Route('/test/{' . RouteObjectInterface::ROUTE_NAME . '}'));
+    $routes[] = array(new Route('/test/{_content}'));
+    $routes[] = array(new Route('/test/{_form}'));
+    $routes[] = array(new Route('/test/{_raw_variables}'));
+
+    return $routes;
+  }
+
+  /**
+   * Provides a list of routes with valid route variables.
+   *
+   * @return array
+   *   An array of valid routes.
+   */
+  public function providerTestOnRouteBuildingValidVariables() {
+    $routes = array();
+    $routes[] = array(new Route('/test/{account}'));
+    $routes[] = array(new Route('/test/{node}'));
+    $routes[] = array(new Route('/test/{user}'));
+    $routes[] = array(new Route('/test/{entity_test}'));
+
+    return $routes;
+  }
+
+  /**
+   * Tests the onRouteBuilding method for valid variables.
+   *
+   * @param \Symfony\Component\Routing\Route $route
+   *   The route to check.
+   *
+   * @dataProvider providerTestOnRouteBuildingValidVariables
+   */
+  public function testOnRouteBuildingValidVariables(Route $route) {
+    $route_collection = new RouteCollection();
+    $route_collection->add('test', $route);
+    $event = new RouteBuildEvent($route_collection, 'test');
+    $this->specialAttributesRouteSubscriber->onRouteBuilding($event);
+  }
+
+  /**
+   * Tests the onRouteBuilding method for invalid variables.
+   *
+   * @param \Symfony\Component\Routing\Route $route
+   *   The route to check.
+   *
+   * @dataProvider providerTestOnRouteBuildingInvalidVariables
+   *
+   * @expectedException \InvalidArgumentException
+   */
+  public function testOnRouteBuildingInvalidVariables(Route $route) {
+    $route_collection = new RouteCollection();
+    $route_collection->add('test', $route);
+    $event = new RouteBuildEvent($route_collection, 'test');
+    $this->specialAttributesRouteSubscriber->onRouteBuilding($event);
+  }
+
+}