CVE-2026-1181

CRITICAL
2026-01-19 4760f414-e1ae-4ff1-bdad-c7a9c3538b79
9.0
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 19, 2026 - 13:16 nvd
CRITICAL 9.0

DescriptionNVD

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.

AnalysisAI

Altium 365 workspace endpoints had overly permissive CORS policies that allow unauthorized cross-origin access to workspace data, potentially exposing proprietary PCB designs and engineering data.

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RemediationAI

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

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CVE-2026-1181 vulnerability details – vuln.today

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