Unvalidated Redirect in ArcGIS Server

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Summary

CVECVE-2026-2813
StatePUBLISHED
AssignerEsri
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-20 20:16:37 UTC
Updated2026-05-21 18:54:30 UTC
DescriptionArcGIS 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.

Risk And Classification

Primary CVSS: v3.1 4.1 MEDIUM from [email protected]

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

EPSS: 0.000440000 probability, percentile 0.136930000 (date 2026-05-27)

Problem Types: CWE-601 | CWE‑601: URL Redirection to Untrusted Site (Open Redirect)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
3.1[email protected]Secondary4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
3.1CNACVSS4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Esri Arcgis Server 11.5 All All All
Operating System Linux Linux Kernel - All All All
Operating System Microsoft Windows - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Esri ArcGIS Server affected 11.5 Windows, Linux

References

ReferenceSourceLinkTags
www.esri.com/arcgis-blog/products/trust-arcgis/administration/april2026_se... [email protected] www.esri.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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