cilefen · cilefen · cilefen · Jess · Jess · Jess
--- a/core/CHANGELOG.txt
+++ b/core/CHANGELOG.txt
+Drupal 8.2.8, 2017-04-19
+------------------------
+- Fixed security issues. See SA-CORE-2017-002.
+
+Drupal 8.2.7, 2017-03-15
+------------------------
+- Fixed security issues. See SA-CORE-2017-001.
+
 Drupal 8.2.3, 2016-11-16
 ------------------------
 - Fixed security issues. See SA-CORE-2016-005.

--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -81,7 +81,7 @@ class Drupal {
  /**
   * The current system version.
   */
-  const VERSION = '8.2.6';
+  const VERSION = '8.2.8-dev';

  /**
   * Core API compatibility.

--- a/core/lib/Drupal/Core/Entity/EntityAccessControlHandler.php
+++ b/core/lib/Drupal/Core/Entity/EntityAccessControlHandler.php
@@ -303,6 +303,19 @@ public function fieldAccess($operation, FieldDefinitionInterface $field_definiti
    // Get the default access restriction that lives within this field.
    $default = $items ? $items->defaultAccess($operation, $account) : AccessResult::allowed();

+    // Explicitly disallow changing the entity ID and entity UUID.
+    if ($operation === 'edit') {
+      if ($field_definition->getName() === $this->entityType->getKey('id')) {
+        return $return_as_object ? AccessResult::forbidden('The entity ID cannot be changed') : FALSE;
+      }
+      elseif ($field_definition->getName() === $this->entityType->getKey('uuid')) {
+        // UUIDs can be set when creating an entity.
+        if ($items && ($entity = $items->getEntity()) && !$entity->isNew()) {
+          return $return_as_object ? AccessResult::forbidden('The entity UUID cannot be changed')->addCacheableDependency($entity) : FALSE;
+        }
+      }
+    }
+
    // Get the default access restriction as specified by the access control
    // handler.
    $entity_default = $this->checkFieldAccess($operation, $field_definition, $account, $items);