Drupal 7.x before 7.14 does not properly restrict access to nodes in a list when using a "contributed node access module," which allows remote authenticated users with the "Access the content overview page" permission to read all published nodes by accessing the admin/content page.
http://www.securityfocus.com/bid/53362
http://www.mandriva.com/security/advisories?name=MDVSA-2013:074
http://secunia.com/advisories/49012
http://drupalcode.org/project/drupal.git/commit/c6d2b8311b82fe78d18732f01a68ceca3dea50af
http://drupal.org/node/1558478