Critical security patch for ArcGIS Server
Esri has discovered a critical security vulnerability in ArcGIS Server of ArcGIS Enterprise resulting in a Server Side Request Forgery (SSRF) issue.
All versions prior to ArcGIS Server 10.8 on both Windows and Linux are impacted by this security issue. Esri has released patches for all supported versions of ArcGIS Server, from version 10.4 through 10.7.1. It is strongly recommended to install the relevant patch at your earliest possible opportunity.