Vulnerability Database

322,904

Total vulnerabilities in the database

CVE-2026-1181

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.

  • Published: Jan 19, 2026
  • Updated: Jan 23, 2026
  • CVE: CVE-2026-1181
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9
  • AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H