CVE-2026-1181 | BDVDB-2026-311178 Detail

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.

Impact#

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Exploit#

History#

1. Version 12026-01-19Record published in the CVE List.
2. Version 22026-01-26Most recent update recorded in the CVE List.