CVE-2025-68158

Authlib is a Python library which builds OAuth and OpenID Connect servers. In versions 1.0.0 through 1.6.5, cache-backed state/request-token storage is not tied to the initiating user session, so CSRF is possible for any attacker that has a valid state (easily obtainable via an attacker-initiated authentication flow). When a cache is supplied to the OAuth client registry, FrameworkIntegration.set_state_data writes the entire state blob under _state_{app}_{state}, and get_state_data ignores the caller’s session altogether. This issue has been patched in version 1.6.6.

CVSS v3 5.7 MEDIUM

5.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/authlib/authlib/commit/2808378611dd6fb2532b189a9087877d8f0c0489	Patch
https://github.com/authlib/authlib/commit/7974f45e4d7492ab5f527577677f2770ce423228	Patch
https://github.com/authlib/authlib/security/advisories/GHSA-fg6f-75jq-6523	Exploit Vendor Advisory
https://github.com/authlib/authlib/security/advisories/GHSA-fg6f-75jq-6523	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:authlib:authlib:*:*:*:*:*:*:*:*

History

14 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Authlib es una biblioteca de Python que construye servidores OAuth y OpenID Connect. En la versión 1.6.5 y anteriores, el almacenamiento de estado/token de solicitud respaldado por caché no está vinculado a la sesión de usuario iniciadora, por lo que CSRF es posible para cualquier atacante que tenga un estado válido (fácilmente obtenible a través de un flujo de autenticación iniciado por el atacante). Cuando se suministra una caché al registro de clientes OAuth, FrameworkIntegration.set_state_data escribe el blob de estado completo bajo _state_{app}_{state}, y get_state_data ignora por completo la sesión del llamador. Este problema ha sido parcheado en la versión 1.6.6.

Information

Published : 2026-01-08 18:15

Updated : 2026-10-14 17:10

NVD link : CVE-2025-68158

Mitre link : CVE-2025-68158

CVE.ORG link : CVE-2025-68158

JSON object : View

Products Affected

authlib

authlib

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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