Esri Portal For Arcgis — CVE-2026-13020 (Critical)

Date Jul 7, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product Esri · Portal For Arcgis

CVE CVE-2026-13020

Critical vendor advisory CVE-2026-13020

Summary

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.

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 8.1) in Esri Portal For Arcgis. Patch or mitigate promptly. EPSS percentile: 13%.

Operator check

Review CVE-2026-13020 in your asset inventory. Apply patches per vendor guidance and verify Portal For Arcgis is not exposed. CVSS score: 8.1. EPSS probability: 0.2%; percentile: 13%.

Sources

NVD — CVE-2026-13020 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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