Published: August 21, 2026 | Last Modified: August 21, 2026
There is a missing authentication vulnerability in Esri Portal for ArcGIS versions 12.0 and prior that may allow a remote, unauthenticated attacker to access a specific resource (not user content) that should only be accessible by authenticated users. Users working with ArcGIS Enterprise 11.1, 11.3, 11.5, or 12.0 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.
This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.