EUVD-2026-48304

Logto bypasses OIDC nonce validation when the nonce claim is absent from the idtoken, enabling replay of authentication tokens and weakening session-binding...

CVE-2026-15614 IdP-initiated SAML sessions not reliably invalidated (replay)

Logto silently fails to delete IdP-initiated SAML sessions, enabling session replay and reuse within the session’s validity window...

EUVD-2026-43011

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's existing TOTP verification accepted a successfully used TOTP code again while the code remained inside the RFC 6238 acceptance window because the verifier used otplib's stateless check with window ...