CVE-2026-32246
Tinyauth vulnerable to TOTP/2FA bypass via OIDC authorize endpoint
HIGH 7.1EPSS 0.4%
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
- steveiliop56 · tinyauth
- CVSS v3.1 NVD
- 7.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N - CVSS v3.1 GITHUB
- 8.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N - EPSS
- 0.40% chance of exploitation in the next 30 days, 33rd percentile
- Published
- 2026-03-12