Detections
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Esri Portal for ArcGIS 11.5 < Security 2026 Update 1 Incorrect Privilege Assignment (CVE-2026-33518)

critical Nessus Plugin ID 309967

Synopsis

The remote host is missing one or more security updates.

Description

The version of Esri Portal for ArcGIS 11.5 installed is missing Security 2026 Update 1. It is, therefore, affected by a vulnerability:

 - An incorrect privilege assignment vulnerability exists in Portal for ArcGIS that allows highly privileged users to create developer credentials that may grant more privileges than expected. (CVE-2026-33518)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Apply the Security 2026 Update 1 patch for Esri Portal for ArcGIS.

See Also

http://www.nessus.org/u?cb8c8870

Plugin Details

Severity: Critical

ID: 309967

File Name: esri_portal_for_arcgis_CVE-2026-33518.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Windows

Published: 4/23/2026

Updated: 4/23/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2026-33518

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: 4/13/2026

Vulnerability Publication Date: 4/13/2026

Reference Information

CVE: CVE-2026-33518

IAVA: 2026-A-0394