---
id: CVE-2026-10759
title: >-
  A flaw in Portal for ArcGIS could allow LDAP injection through administrative
  functionality that constructs Active Directory or LDAP search queries without
  sufficient input neutralization
summary: >-
  A flaw in Portal for ArcGIS could allow LDAP injection through administrative
  functionality that constructs Active Directory or LDAP search queries without
  sufficient input neutralization. An authenticated administrator could supply
  craf…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-90
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T20:17:25.563'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-10759'
references:
  - url: >-
      https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/september-2026-arcgis-security-bulletin
    label: psirt@esri.com
tags:
  - nvd
ingestedAt: '2026-10-13T17:38:53.182Z'
---

## Overview

A flaw in Portal for ArcGIS could allow LDAP injection through administrative functionality that constructs Active Directory or LDAP search queries without sufficient input neutralization. An authenticated administrator could supply crafted input that modifies the intended LDAP query and causes unintended directory operations.

## Remediation

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