Detections
Analytics
Esri Portal for ArcGIS 11.1 / 11.3 / 11.5 / 12.0 / 12.1 < Security 2026 Update 4 Multiple Vulnerabilities
critical Nessus Plugin ID 366549
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Synopsis
The remote host is missing one or more security updates.Description
The version of Esri Portal for ArcGIS installed on the remote host is 11.1, 11.3, 11.5, 12.0, or 12.1 and is missing the Security 2026 Update 4 Patch. It is, therefore, affected by multiple vulnerabilities:- A missing authentication vulnerability exists in Esri Portal for ArcGIS that allows a remote, unauthenticated attacker to access certain Portal Administrator API endpoints under specific conditions. (CVE-2026-69227)
- An incorrect authorization vulnerability exists in Esri Portal for ArcGIS that allows a remote, unauthenticated attacker to create new accounts through the sharing endpoint even when self-service account registration is disabled (disableSignup=true). (CVE-2026-69226)
- An LDAP injection vulnerability exists in Esri Portal for ArcGIS that allows a remote, authenticated attacker with administrative privileges to supply crafted input that modifies Active Directory or LDAP search queries and causes unintended directory operations. (CVE-2026-10759)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Apply the Security 2026 Update 4 patch for Esri Portal for ArcGIS.See Also
Plugin Details
Severity: Critical
ID: 366549
File Name: esri_portal_for_arcgis_2026_update_4.nasl
Version: 1.1
Type: Local
Agent: windows
Family: Windows
Published: 10/16/2026
Updated: 10/16/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.37
CVSS v2
Risk Factor: Critical
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-69227
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability Information
CPE: cpe:/a:esri:portal_for_arcgis
Required KB Items: installed_sw/Esri Portal for ArcGIS
Patch Publication Date: 9/24/2026
Vulnerability Publication Date: 9/24/2026