diff --git a/cake/libs/controller/components/auth.php b/cake/libs/controller/components/auth.php
index 19d93054531..0ed374f6b8c 100644
--- a/cake/libs/controller/components/auth.php
+++ b/cake/libs/controller/components/auth.php
@@ -591,7 +591,7 @@ function __authType($auth = null) {
  * Takes a list of actions in the current controller for which authentication is not required, or
  * no parameters to allow all actions.
  *
- * @param string $action Controller action name
+ * @param mixed $action Controller action name or array of actions
  * @param string $action Controller action name
  * @param string ... etc.
  * @return void
@@ -612,7 +612,7 @@ function allow() {
 /**
  * Removes items from the list of allowed actions.
  *
- * @param string $action Controller action name
+ * @param mixed $action Controller action name or array of actions
  * @param string $action Controller action name
  * @param string ... etc.
  * @return void
@@ -621,6 +621,9 @@ function allow() {
  */
 	function deny() {
 		$args = func_get_args();
+		if (isset($args[0]) && is_array($args[0])) {
+			$args = $args[0];
+		}
 		foreach ($args as $arg) {
 			$i = array_search($arg, $this->allowedActions);
 			if (is_int($i)) {
diff --git a/cake/tests/cases/libs/controller/components/auth.test.php b/cake/tests/cases/libs/controller/components/auth.test.php
index 34ddb2955e2..e6b75a5cf32 100644
--- a/cake/tests/cases/libs/controller/components/auth.test.php
+++ b/cake/tests/cases/libs/controller/components/auth.test.php
@@ -777,7 +777,7 @@ function testAllowDenyAll() {
 		$this->Controller->Auth->initialize($this->Controller);
 
 		$this->Controller->Auth->allow('*');
-		$this->Controller->Auth->deny('add');
+		$this->Controller->Auth->deny('add', 'camelcase');
 
 		$this->Controller->params['action'] = 'delete';
 		$this->assertTrue($this->Controller->Auth->startup($this->Controller));
@@ -787,6 +787,15 @@ function testAllowDenyAll() {
 
 		$this->Controller->params['action'] = 'Add';
 		$this->assertFalse($this->Controller->Auth->startup($this->Controller));
+
+		$this->Controller->params['action'] = 'camelCase';
+		$this->assertFalse($this->Controller->Auth->startup($this->Controller));
+
+		$this->Controller->Auth->allow('*');
+		$this->Controller->Auth->deny(array('add', 'camelcase'));
+
+		$this->Controller->params['action'] = 'camelCase';
+		$this->assertFalse($this->Controller->Auth->startup($this->Controller));
 	}
 
 /**