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I. Basic Information for CVE-2026-1181
Vulnerability Information

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Vulnerability Title
Altium 365 Over-Permissive CORS Configuration Allows Credentialed Cross-Origin Workspace Access
Source: NVD (National Vulnerability Database)
Vulnerability Description
Altium 365 workspace endpoints were configured with an overly permissive Cross-Origin Resource Sharing (CORS) policy that allowed credentialed cross-origin requests from other Altium-controlled subdomains, including forum.live.altium.com. As a result, JavaScript executing on those origins could access authenticated workspace APIs in the context of a logged-in user. When chained with vulnerabilities in those external applications, this misconfiguration enables unauthorized access to workspace data, administrative actions, and bypass of IP allowlisting controls, including in GovCloud environments.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
过度许可的跨域白名单
Source: NVD (National Vulnerability Database)
Vulnerability Title
Altium Forum 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Altium Forum是美国Altium公司的一个在线社区。 Altium Forum存在安全漏洞,该漏洞源于服务器端输入清理不足,可能导致存储型跨站脚本攻击。
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
VendorProductAffected VersionsCPESubscribe
AltiumAltium 365 unspecified -
II. Public POCs for CVE-2026-1181
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III. Intelligence Information for CVE-2026-1181
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IV. Related Vulnerabilities
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