{"id":"CVE-2026-105207","state":"PUBLISHED","title":"ZITADEL before 4.17.3 Account Takeover via External IdP Linking","description":"ZITADEL 3.0.0 through 3.4.15 and 4.0.0 before 4.17.3 creates links between user accounts and external identity providers without verifying a primary factor or the caller's permission, including on identify-only Login V2 sessions and via the User Service V2 AddIDPLink endpoint. 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