The most recent CJMTK ArcGIS Portal segments have been updated to include the recent security patch from Esri. If you need assitance with acquiring and/or applying the patch, please submit a helpdesk ticket and we will be happy to assist.
The patches can be downloaded directly from Esri here (versions 10.6.1, 10.5.1, etc.) or here (versions 10.6, etc.).