Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Esri | Portal for ArcGIS | 11.1 – ≤ 12.0 | — |
Advisories 1
- WID-SEC-2026-2966 ESRI Portal für ArcGIS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 23, 2026