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    CVE-2026-32246

    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.

    Published:Mar 12, 2026
    Last Modified:Mar 23, 2026
    EPS:Mar 12, 2026
    EPSS Score:0.0005
    CVSS Score:8.5

    Affected Products

    Vendor
    Steveiliop56
    Product
    Tinyauth
    Vendor
    Tinyauth
    Product
    Tinyauth

    Exploits

    https://github.com/steveiliop56/tinyauth/security/advisories/GHSA-3q28-qjrv-qr39

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High