CVE-2026-32246
HIGHtinyauth < 5.0.3 - Improper Authentication via OIDC Authorization Endpoint
Title source: llmDescription
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.
References (1)
Core 1
Core References
Vendor Advisory x_refsource_confirm
https://github.com/steveiliop56/tinyauth/security/advisories/GHSA-3q28-qjrv-qr39
Scores
CVSS v3
8.5
EPSS
0.0027
EPSS Percentile
18.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-287
Status
published
Products (2)
steveiliop56/tinyauth
0 - 1.0.1-20260311144920-9eb2d33064b7Go
tinyauth/tinyauth
< 5.0.2
Published
Mar 12, 2026
Tracked Since
Mar 13, 2026