CVE-2026-2813 — MEDIUM (4.7)

Vulnerability 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.

CVSS Score

4.7

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Esri	Arcgis Server	11.5
Linux	Linux Kernel	-
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-601

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/april2026_Vendor Advisory

FAQ

What is CVE-2026-2813?

CVE-2026-2813 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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 exploitatio...

How severe is CVE-2026-2813?

CVE-2026-2813 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-2813?

Check the references section above for vendor advisories and patch information. Affected products include: Esri Arcgis Server, Linux Linux Kernel, Microsoft Windows.