{"id":"CVE-2026-105215","state":"PUBLISHED","title":"ZITADEL before 4.16.2 Account Pre-Hijacking via Forged External IdP Callback","description":"ZITADEL before 3.4.14 and 4.x before 4.16.2 contains an authentication bypass in the hosted Login V1 UI because the 'external account not found' registration endpoint trusts client-supplied external identity fields without a completed IdP callback. 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