CVE-2026-15615: Logto

High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Logto omits validation of the SAML <Conditions> element, enabling attackers to strip time and audience restrictions and replay assertions indefinitely.

Affected products

• Logto Logto: from 1.12.0, up to and including 1.37.1

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