CVE-2026-2812— Improper Authentication issue in ArcGIS Server
Possible ATT&CK Techniques 3AI
T1078 · Valid Accounts T1496 · Resource Hijacking T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Esri | ArcGIS Server | 11.1≤ 12.0 | affected |
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I. Basic Information for CVE-2026-2812
Vulnerability Information
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Vulnerability Title
Improper Authentication issue in ArcGIS Server
Source: NVD (National Vulnerability Database)
Vulnerability Description
ArcGIS Server contains an improper authentication vulnerability in an undocumented administrative endpoint. An unauthenticated attacker could exploit this issue by sending a crafted request to the endpoint. Successful exploitation may result in disruption of the web-based browsing interface. This issue affects ArcGIS Server 12.0 and earlier.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Esri ArcGIS Server 授权问题漏洞
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 12.0及之前版本存在授权问题漏洞，该漏洞源于未记录的行政端点存在身份验证不当，可能导致未经身份验证的攻击者通过发送特制请求利用此问题，成功利用可能导致基于Web的浏览界面中断。
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 | 11.1 ~ 12.0 | - |
II. Public POCs for CVE-2026-2812
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: ArcGIS Server
- CVE-2026-2813
Unvalidated Redirect in ArcGIS Server - CVE-2025-67711
Reflected XSS vulnerability in ArcGIS Server. - CVE-2025-67710
Stored XSS vulnerability in ArcGIS Server - CVE-2025-67709
There is a cross site scripting issue in ArcGIS Server. - CVE-2025-67708
Reflected cross-site scripting (XSS) vulnerability in ArcGIS
Same vendor: Esri
- CVE-2026-2813
Unvalidated Redirect in ArcGIS Server - CVE-2026-33519
Incorrect privilege assignment in Portal for ArcGIS - CVE-2026-33518
Incorrect privilege assignment in Portal for ArcGIS - CVE-2026-1446
XSS issue is Esri ArcGIS Pro versions 3.6.0 and earlier - CVE-2025-67711
Reflected XSS vulnerability in ArcGIS Server.
Same weakness: CWE-287
- CVE-2026-44058
Authentication bypass via admin auth user - CVE-2026-40165
authentik: SAML NameID XML Comment Injection Enables Authent - CVE-2026-9084
MISP OIDC authentication bypass via automatic email-based ac - CVE-2026-6456
Account Switcher <= 1.0.2 - Authenticated (Subscriber+) Auth - CVE-2026-45434
Apache OFBiz: Authentication Bypass via Password-Change Logi
V. Comments for CVE-2026-2812
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