CVE-2026-9182: Esri Arcgis Server

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Esri ArcGIS Server contains an unrestricted file upload vulnerability. An unauthenticated attacker could exploit this issue by uploading a crafted file to the affected endpoint. Successful exploitation could allow arbitrary file upload, potentially allowing for other attacks. This issue impacts all versions of ArcGIS Server on Windows and Linux 12.0 and prior. This issue does not impact ArcGIS Enterprise for Kubernetes.

Affected products

• Esri Arcgis Server: up to and including 12.0

Published 2026-07-06. Last modified 2026-07-08.