diff --git a/source/java/org/alfresco/repo/rule/RuleServiceImpl.java b/source/java/org/alfresco/repo/rule/RuleServiceImpl.java
index ad5b34e9d7..b15ab810ae 100644
--- a/source/java/org/alfresco/repo/rule/RuleServiceImpl.java
+++ b/source/java/org/alfresco/repo/rule/RuleServiceImpl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2012 Alfresco Software Limited.
+ * Copyright (C) 2005-2014 Alfresco Software Limited.
  *
  * This file is part of Alfresco
  *
@@ -1033,6 +1033,7 @@ public class RuleServiceImpl
             this.disabledRules.contains(rule) == false)
         {
             PendingRuleData pendingRuleData = new PendingRuleData(actionableNodeRef, actionedUponNodeRef, rule, executeAtEnd);
+            pendingRuleData.setRunAsUser(AuthenticationUtil.getRunAsUser());
 
             List<PendingRuleData> pendingRules =
                 (List<PendingRuleData>) AlfrescoTransactionSupport.getResource(KEY_RULES_PENDING);
@@ -1134,8 +1135,28 @@ public class RuleServiceImpl
      * 
 	 * @param pendingRule	the pending rule data object
      */
+    private void executePendingRule(final PendingRuleData pendingRule) 
+    {
+        if (AuthenticationUtil.getRunAsAuthentication() == null && pendingRule.getRunAsUser() != null)
+        {
+            // MNT-11670: runAsUser was set previously
+            AuthenticationUtil.runAs(new AuthenticationUtil.RunAsWork<Void>()
+            {
+                public Void doWork() throws Exception
+                {
+                    executePendingRuleImpl(pendingRule);
+                    return null;
+                }
+            }, pendingRule.getRunAsUser());
+        }
+        else
+        {
+            executePendingRuleImpl(pendingRule);
+        }
+    }
+    
     @SuppressWarnings("unchecked")
-    private void executePendingRule(PendingRuleData pendingRule) 
+    private void executePendingRuleImpl(PendingRuleData pendingRule) 
     {
         Set<ExecutedRuleData> executedRules =
                (Set<ExecutedRuleData>) AlfrescoTransactionSupport.getResource(KEY_RULES_EXECUTED);
@@ -1408,6 +1429,7 @@ public class RuleServiceImpl
     {
         private NodeRef actionedUponNodeRef;
         private boolean executeAtEnd = false;
+        private String runAsUserName = null;
             
         public PendingRuleData(NodeRef actionableNodeRef, NodeRef actionedUponNodeRef, Rule rule, boolean executeAtEnd) 
         {
@@ -1426,6 +1448,16 @@ public class RuleServiceImpl
             return this.executeAtEnd;
         }
         
+        public String getRunAsUser()
+        {
+            return this.runAsUserName;
+        }
+
+        public void setRunAsUser(String runAsUserName)
+        {
+            this.runAsUserName = runAsUserName;
+        }
+        
         @Override
         public int hashCode() 
         {
diff --git a/source/test-java/org/alfresco/repo/rule/RuleServiceImplTest.java b/source/test-java/org/alfresco/repo/rule/RuleServiceImplTest.java
index a363fb69f9..9cf176d72c 100644
--- a/source/test-java/org/alfresco/repo/rule/RuleServiceImplTest.java
+++ b/source/test-java/org/alfresco/repo/rule/RuleServiceImplTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2013 Alfresco Software Limited.
+ * Copyright (C) 2005-2014 Alfresco Software Limited.
  *
  * This file is part of Alfresco
  *
@@ -1187,4 +1187,53 @@ public class RuleServiceImplTest extends BaseRuleTest
         this.nodeService.deleteNode(folder2NodeRef);
         txn.commit();
     }
+    
+    /**
+     * MNT-11670
+     */
+    public void testRuleExecutionWhenSecurityContextIsEmpty() throws Exception
+    {
+        // Create parent and child folders
+        NodeRef parentNodeRef = this.nodeService.createNode(rootNodeRef, ContentModel.ASSOC_CHILDREN, QName.createQName("parentnode" + GUID.generate()), ContentModel.TYPE_FOLDER)
+                .getChildRef();
+        
+        // rule is created and added to pending execution by any user
+        assertNotNull(AuthenticationUtil.getFullyAuthenticatedUser());
+        
+        // Create rule for child node
+        Rule testRule = new Rule();
+        testRule.setRuleTypes(Collections.singletonList(RuleType.INBOUND));
+        testRule.setTitle("RuleServiceTest" + GUID.generate());
+        testRule.setDescription(DESCRIPTION);
+        testRule.applyToChildren(true);
+        Action action = this.actionService.createAction(AddFeaturesActionExecuter.NAME);
+        action.setParameterValue(AddFeaturesActionExecuter.PARAM_ASPECT_NAME, ContentModel.ASPECT_VERSIONABLE);
+        testRule.setAction(action);
+        this.ruleService.saveRule(parentNodeRef, testRule);
+        assertNotNull("Rule was not saved", testRule.getNodeRef());
+
+        // Search rules
+        List<Rule> rules = this.ruleService.getRules(parentNodeRef, true, testRule.getRuleTypes().get(0));
+        assertNotNull("No rules found", rules);
+        assertTrue("Created rule is not found", new HashSet<Rule>(rules).contains(testRule));
+
+        // New node
+        NodeRef actionedUponNodeRef = this.nodeService.createNode(parentNodeRef, ContentModel.ASSOC_CHILDREN, QName.createQName("actioneduponnode" + GUID.generate()),
+                ContentModel.TYPE_CONTENT).getChildRef();
+
+        // Queue the rule to be executed later and execute pending rules
+        if (this.nodeService.hasAspect(actionedUponNodeRef, ContentModel.ASPECT_VERSIONABLE))
+        {
+            this.nodeService.removeAspect(actionedUponNodeRef, ContentModel.ASPECT_VERSIONABLE);
+        }
+        ((RuntimeRuleService) ruleService).addRulePendingExecution(parentNodeRef, actionedUponNodeRef, testRule);
+        
+        // no security context in case of the issue
+        AuthenticationUtil.clearCurrentSecurityContext();
+        assertNull(AuthenticationUtil.getFullyAuthenticatedUser());
+        assertNull(AuthenticationUtil.getRunAsUser());
+        
+        ((RuntimeRuleService) ruleService).executePendingRules();
+        assertTrue("Pending rule was not executed", this.nodeService.hasAspect(actionedUponNodeRef, ContentModel.ASPECT_VERSIONABLE));
+    }
 }