Technical resource
Reset password not working after SUPEE-10888
Note: This is a historical reference, not a current security baseline. Magento 1 is end-of-life.
Customers can not reset their passwords in Frontend after installing SUPEE-10888 patch. Blank screen or fatal error is reported on password reset page.
See Fatal error: Call to a member function getBackend() on a non-object in app/code/core/Mage/Eav/Model/Entity/Abstract.php on line 153.