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CVE-2026-2813— Unvalidated Redirect in ArcGIS Server

Quick assessment

Affected
Esri ArcGIS Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Esri ArcGIS Server是Esri公司的一个面向Web的可用于提供地理位置服务的企业级软件平台。 Esri ArcGIS Server 11.5版本存在安全漏洞，该漏洞源于登录重定向工作流中存在输入验证弱点，可能导致经过身份验证的攻击者通过发送特制请求利用此问题，成功利用可能导致应用程序将浏览器重定向到意外的不可信站点，在特定用户交互条件下造成有限的机密性影响。

CVSS 4.7 · Medium EPSS 0.32% · P23

Affected Version Matrix 1

VendorProduct Version RangeStatus
Esri ArcGIS Server 11.5 affected
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I. Basic Information for CVE-2026-2813

Vulnerability Information
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Vulnerability Title
Unvalidated Redirect in ArcGIS Server
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Esri ArcGIS Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Esri ArcGIS Server是Esri公司的一个面向Web的可用于提供地理位置服务的企业级软件平台。 Esri ArcGIS Server 11.5版本存在安全漏洞，该漏洞源于登录重定向工作流中存在输入验证弱点，可能导致经过身份验证的攻击者通过发送特制请求利用此问题，成功利用可能导致应用程序将浏览器重定向到意外的不可信站点，在特定用户交互条件下造成有限的机密性影响。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Esri ArcGIS Server 11.5 -

II. Public POCs for CVE-2026-2813

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III. Intelligence Information for CVE-2026-2813

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IV. Related Vulnerabilities

Same product: ArcGIS Server
Same vendor: Esri

V. Comments for CVE-2026-2813

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