CVE-2026-32245

MEDIUM

6.5

Description

Tinyauth is an authentication and authorization server. Prior to 5.0.3, the OIDC token endpoint does not verify that the client exchanging an authorization code is the same client the code was issued to. A malicious OIDC client operator can exchange another client's authorization code using their own client credentials, obtaining tokens for users who never authorized their application. This violates RFC 6749 Section 4.1.3. This vulnerability is fixed in 5.0.3.

Details CVE

Score CVSS v3.16.5

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie3/12/2026

Derniere modification3/19/2026

Sourcenvd

Observations honeypot0

Produits affectes

tinyauth:tinyauth

Faiblesses (CWE)

CWE-863

References

https://github.com/steveiliop56/tinyauth/commit/b2a1bfb1f532e87f205fa3afa3fc9f148c53ab89(security-advisories@github.com)

https://github.com/steveiliop56/tinyauth/releases/tag/v5.0.3(security-advisories@github.com)

https://github.com/steveiliop56/tinyauth/security/advisories/GHSA-xg2q-62g2-cvcm(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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