ON September 24, 2026, Esri released Security Update 4 to address three vulnerabilities in Portal for ArcGIS. This update fixes a critical missing authentication flaw and two medium-severity issues. It is essential for administrators to apply this patch to secure their enterprise mapping infrastructure against unauthorized access. The page also features options for premium subscription access to detailed threat intelligence reports.
Esri Patches Critical Portal for ArcGIS Authentication Flaw
Article by CyberSIXT