One Identity Cloud Access Manager before 8.1.4 Hotfix 1 allows OTP bypass via vectors involving a man in the middle, the One Identity Defender product, and replacing a failed SAML response with a successful SAML response.
One Identity Cloud Access Manager 8.1.3 does not use HTTP Strict Transport Security (HSTS), which may allow man-in-the-middle (MITM) attacks. This issue is fixed in version 8.1.4.