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CVE-2026-33518

Esri Portal for ArcGIS - Developer Credentials

Esri CVSS 9.8 Updated April 30, 2026

Executive Risk Summary

"A vulnerability in Esri Portal for ArcGIS 11.5 allows highly privileged users to create developer credentials with more privileges than expected, potentially leading to unauthorized access. This vulnerability affects both Windows and Linux versions of the product."

Anticipated Attack Path

  1. 1. Highly privileged user creates developer credentials
  2. 2. Developer credentials are used to access sensitive data and systems
  3. 3. Unauthorized access leads to data breaches or system compromise

Am I Vulnerable?

  • Review developer credentials for excessive privileges
  • Monitor system logs for suspicious activity
  • Implement least privilege access for all users

Operational Audit Arsenal

Target Type Service
Target Asset ArcGIS Portal
Standard Path Windows and Linux systems

Manual Verification Required

This is a non-Windows asset (Esri). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.

Patch Impact Forecast

Reboot Required Unlikely

Minimal, but may require re-configuration of developer credentials

Internal Work Notes

CVE-2026-33518: Esri Portal for ArcGIS vulnerability allowing highly privileged users to create developer credentials with excessive privileges. Implement patches and review developer credentials to mitigate risk.

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Related Esri Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.