CVE-2026-49272 in OAuthLib

Prediction

by VulDB Data Team • 10/27/2026

A vulnerability was detected in <a href="/product/oauthlib">OAuthLib</a>. This issue affects the function <code>DeviceCodeGrant.validate_token_request</code> of the file <em>oauthlib/oauth2/rfc6749/grant_types/device_code.py</em> of the component <em>Device Code Grant</em>. The manipulation of the argument <em>device_code</em> results in improper input validation. The attack may be performed from remote.

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• Moderation: accepted
• Entry: VDB-427399
• CWE: CWE-20 (confirmed)
• CVSS: 6.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-49272
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-49272
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-49272/