CVE-2026-69237: Esri Portal For Arcgis

Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days.

There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 11.3 and prior that allows a remote attacker with administrative privileges to insert arbitrary HTML into an administrative API. Users working with ArcGIS Enterprise 11.1, and 11.3 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.

Affected products

• Esri Portal For Arcgis: before 11.1 (fixed in 11.1); version 11.1 only; version 11.2 only; version 11.3 only

Published 2026-08-21. Last modified 2026-09-11.