CVE-2026-13020

EUVD-2026-42057

07.07.2026, 17:16

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
Esri	CNA	8.1 HIGH	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources.

Vendor	Product	Version	Source
esri	portal_for_arcgis	𝑥 < 12.1	CNA

Common Weakness Enumeration

CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
The software contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/june-2026-arcgis-security-bulletin