diff -u b/core/lib/Drupal/Core/Menu/DefaultMenuLinkTreeManipulators.php b/core/lib/Drupal/Core/Menu/DefaultMenuLinkTreeManipulators.php
--- b/core/lib/Drupal/Core/Menu/DefaultMenuLinkTreeManipulators.php
+++ b/core/lib/Drupal/Core/Menu/DefaultMenuLinkTreeManipulators.php
@@ -208,9 +208,11 @@
    */
   protected function menuLinkCheckAccess(MenuLinkInterface $instance) {
     $access_result = NULL;
+    $user = \Drupal::currentUser();
     if (!in_array($instance->getRouteName(), static::FORCE_ACCESS_CHECK, TRUE) && ($this->account->hasPermission('link to any page'))) {
       $access_result = AccessResult::allowed();
     }
+
     else {
       $url = $instance->getUrlObject();
 
@@ -222,6 +224,12 @@
         $access_result = $this->accessManager->checkNamedRoute($url->getRouteName(), $url->getRouteParameters(), $this->account, TRUE);
       }
     }
+
+    //checking access for Anonymous user logout.
+    if ($user->id() === 0 && $instance->getRouteName() === 'user.logout') {
+      $access_result = AccessResult::forbidden();
+    }
+
     return $access_result->cachePerPermissions();
   }