CVE-2026-15617 Principal/domain lookup without case normalization

Logto performs principal lookup without normalizing email and identifier strings, enabling principal collision and unauthorized account access via case- or Unicode-different identities...

CVE-2026-15617

CVE-2026-15617 affects Logto Identity Platform: during SSO, the system performs strict, unnormalized comparisons of identity attributes (email, issuer, identity IDs), allowing sessions to bind to unintended local accounts due to case/whitespace/Unicode differences. This can enable unauthorized ac...