---
id: CVE-2026-69226
title: "A flaw in Portal for ArcGIS allows unauthenticated users to create new accounts through the sharing\_endpoint even when self-service account registration is disabled (disableSignup=true)"
summary: "A flaw in Portal for ArcGIS allows unauthenticated users to create new accounts through the sharing\_endpoint even when self-service account registration is disabled (disableSignup=true). An attacker can bypass the intended restriction by…"
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-863
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T20:17:32.527'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-69226'
references:
  - url: >-
      https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/september-2026-arcgis-security-bulletin
    label: psirt@esri.com
tags:
  - nvd
ingestedAt: '2026-10-13T17:38:53.198Z'
---

## Overview

A flaw in Portal for ArcGIS allows unauthenticated users to create new accounts through the sharing endpoint even when self-service account registration is disabled (disableSignup=true). An attacker can bypass the intended restriction by manipulating the signup workflow, resulting in unauthorized account creation.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.