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HIGH · 8.1

CVE-2026-13020

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 owners...

Vulnerability Description

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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
EsriPortal For Arcgis<= 12.1
KubernetesKubernetes-
LinuxLinux Kernel-
MicrosoftWindows-

Related Weaknesses (CWE)

CWE-640

References

FAQ

What is CVE-2026-13020?

CVE-2026-13020 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 owners...

How severe is CVE-2026-13020?

CVE-2026-13020 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13020?

Check the references section above for vendor advisories and patch information. Affected products include: Esri Portal For Arcgis, Kubernetes Kubernetes, Linux Linux Kernel, Microsoft Windows.