EUVD-2026-92108

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. Unauthenticated attackers can submit forged...

CVE-2026-105215

ZITADEL versions before 3.4.14 and 4.x before 4.16.2 are vulnerable to an authentication bypass within the hosted Login V1 UI . The root cause is that the 'external account not found' registration endpoint trusts client-supplied external identity fields without requiring a completed IdP callback ...

PT-2026-104639

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. Unauthenticated attackers can submit forged...