Vulnerability · Published May 20, 2026 · Assigned by Esri
CVE-2026-2813Unvalidated Redirect in ArcGIS Server
Medium 4.7
In plain English
A medium-severity security flaw in ArcGIS Server from Esri. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Official description
ArcGIS Server contains an input validation weakness in the login redirection workflow. An Authenticated attacker could exploit this issue by sending a specially crafted request, Successful exploitation may result in the application redirecting the browser to an unintended, untrusted site, resulting in a limited confidentiality impact under specific user interaction conditions. The vulnerability affects only the client side navigation logic during authentication and remains confined to the same security boundary. No server side compromise or cross component impact is possible. This issue affects ArcGIS Server 11.5.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Esri | ArcGIS Server | 11.5 |