High 8.5Published Mar 12, 2026

CVE-2026-32246Tinyauth vulnerable to TOTP/2FA bypass via OIDC authorize endpoint

Updated under an hour ago (Oct 28, 2026, 3:23 AM ET)

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It affects steveiliop56 tinyauth and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for steveiliop56 tinyauth

Exploited in the last 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.

CVSS: 8.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
Weakness (CWE): CWE-287
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 12, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

steveiliop56 tinyauth steveiliop56:tinyauth (from the name)	before 5.0.3	CNA record
tinyauth tinyauth tinyauth:tinyauth	through 5.0.2	NVD

References

References

https://github.com/steveiliop56/tinyauth/security/advisories/GHSA-3q28-qjrv-qr39	x-refsource-confirm, exploit, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.