CVE-2026-49272
8.5 HIGHpublic exploit availablePublished 2026-11-05 · Updated 2026-11-05
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
Weaknesses
CWE-287
Public exploit & PoC references
- https://github.com/oauthlib/oauthlib/commit/77a5f1c8ce00da2b0b8c5f6e9cc129920085f114
- https://github.com/oauthlib/oauthlib/pull/954
- https://github.com/oauthlib/oauthlib/releases/tag/v4.0.1
- https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3jp2-3mrg-2vxc
- https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3jp2-3mrg-2vxc
All references
- https://github.com/oauthlib/oauthlib/commit/77a5f1c8ce00da2b0b8c5f6e9cc129920085f114
- https://github.com/oauthlib/oauthlib/pull/954
- https://github.com/oauthlib/oauthlib/releases/tag/v4.0.1
- https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3jp2-3mrg-2vxc
- https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3jp2-3mrg-2vxc
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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