EUVD-2026-42057
GHSA-j3v3-cjmx-765g
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated remote reset abuse (PR:N/UI:N/AV:N/AC:L) yields full account takeover; C:H/I:H, and A:H since the victim is locked out after password change.
Primary rating from Vendor (Esri).
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
8DescriptionNVD
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.
Articles & Coverage 1
AnalysisAI
Account takeover in Esri Portal for ArcGIS 12.1 and earlier (Windows, Linux, and Kubernetes) stems from a weak forgotten-password recovery mechanism (CWE-640) that a remote, unauthenticated attacker can manipulate to assume ownership of another user's account. The flaw carries a CVSS 9.8 rating because it is network-reachable with no authentication or user interaction, yielding full compromise of confidentiality, integrity, and availability of the targeted account. …
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Recommended ActionAI
Within 24 hours: Inventory all Esri Portal for ArcGIS deployments and identify systems running version 12.1 or earlier across Windows, Linux, and Kubernetes environments. …
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External POC / Exploit Code
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