CVE-2026-32246 (GCVE-0-2026-32246)

Vulnerability from cvelistv5 – Published: 2026-03-12 18:59 – Updated: 2026-03-12 20:46
VLAI
Title
Tinyauth vulnerable to TOTP/2FA bypass via OIDC authorize endpoint
Summary
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.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-12 20:43 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
steveiliop56 tinyauth Affected: < 5.0.3
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