CVE-2026-13020: Esri Portal For Arcgis

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

A Weak Password Recovery Mechanism for Forgotten Password exists in Esri Portal for ArcGIS versions 12.1 and earlier on Windows, Linux and Kubernetes. A remote, unauthorized attacker may assume ownership of a user’s account by manipulating this mechanism. ArcGIS Administrators should configure an email server with ArcGIS Enterprise to facilitate user self-service password recovery. The ability for an administrator to reset a user’s password remains unchanged.

Affected products

• Esri Portal For Arcgis: up to and including 12.1

Published 2026-07-07. Last modified 2026-07-09.