Apple has released new security updates for both OS X El Capitan and OS X Yosemite



From MacRumors:

Apple has also also introduced Security Update 2016-005 for OS X Yosemite users.

The Security Updates are available to all OS X Yosemite and El Capitan users and can be downloaded from the Mac App Store. Apple recommends all users install the update, and a full list of what's fixed can be found in the accompanying support document.

  Apple Releases Security Updates for OS X El Capitan and OS X Yosemite