CVE-2026-32246: Tinyauth

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Tinyauth is an authentication and authorization server. Prior to 5.0.3, the OIDC authorization endpoint allows users with a TOTP-pending session (password verified, TOTP not yet completed) to obtain authorization codes. An attacker who knows a user's password but not their TOTP secret can obtain valid OIDC tokens, completely bypassing the second factor. This vulnerability is fixed in 5.0.3.

Affected products

• Tinyauth Tinyauth: up to and including 5.0.2

Published 2026-03-12. Last modified 2026-06-17.