CVE Watch5 nov 2026

CVE-2026-49272

OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. From 3.3.0 until 4.0.1, OAuthLib's RFC 8628 device workflo

CVSS

8.5

Alto

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 5 nov 2026 · Última mod.: 5 nov 2026 · CWE-287

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. From 3.3.0 until 4.0.1, OAuthLib's RFC 8628 device workflow does not require DeviceCodeGrant.validate_token_request to check that the device_code parameter is present and valid. A caller whose client request is accepted by the configured validator and who knows a valid client ID enabled for the device workflow can submit a missing or bogus device code to the token endpoint and obtain a bearer token without completing device authorization. This issue is fixed in version 4.0.1.

Referencias oficiales

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