CVE-2026-15616: Logto

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Logto does not enforce locally configured MFA during SSO authentication, allowing users to bypass second-factor requirements and grants unauthorized access.

Affected products

• Logto Logto: from 1.19.0, up to and including 1.37.1

Published 2026-07-23. Last modified 2026-07-27.