diff --git a/core/modules/system/src/SystemConfigSubscriber.php b/core/modules/system/src/SystemConfigSubscriber.php
index 3c0de5f..e0a84a2 100644
--- a/core/modules/system/src/SystemConfigSubscriber.php
+++ b/core/modules/system/src/SystemConfigSubscriber.php
@@ -78,6 +78,40 @@ public function onConfigImporterValidateSiteUUID(ConfigImporterEvent $event) {
   }
 
   /**
+   * Checks for any pending database updates.
+   *
+   * As pending database update can cause issues as they potentially make
+   * changes code base and database.
+   *
+   * @see https://www.drupal.org/node/2628144
+   *
+   * @param ConfigImporterEvent $event
+   *   The config import event.
+   */
+  public function onConfigImporterValidateDatabaseUpdate(ConfigImporterEvent $event) {
+    if ($this->hasModuleUpdates()) {
+      $event->getConfigImporter()->logError($this->t('Pending database updates available'));
+    }
+  }
+
+  /**
+   * Checks if there any pending database updates.
+   *
+   * @return bool
+   *   TRUE, if there any pending update on modules, FALSE otherwise.
+   */
+  protected function hasModuleUpdates() {
+    $updates = update_get_update_list();
+    foreach ($updates as $module => $update) {
+      if (isset($updates['start'])) {
+        return TRUE;
+      }
+    }
+
+    return FALSE;
+  }
+
+  /**
    * {@inheritdoc}
    */
   public static function getSubscribedEvents() {
@@ -86,6 +120,7 @@ public static function getSubscribedEvents() {
     // there is no configuration to import.
     $events[ConfigEvents::IMPORT_VALIDATE][] = array('onConfigImporterValidateNotEmpty', 512);
     $events[ConfigEvents::IMPORT_VALIDATE][] = array('onConfigImporterValidateSiteUUID', 256);
+    $events[ConfigEvents::IMPORT_VALIDATE][] = array('onConfigImporterValidateDatabaseUpdate', 255);
     return $events;
   }