CVE-2026-32245

MEDIUM

6.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung6.5

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N

AngriffsvektorNETWORK

KomplexitatHIGH

Erforderliche PrivilegienLOW

BenutzerinteraktionREQUIRED

Veroffentlicht3/12/2026

Zuletzt geandert3/19/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

tinyauth:tinyauth

Schwachen (CWE)

CWE-863

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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