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CVE-2026-102265 Details

Description

PyJWT is a Python implementation of JSON Web Token standards. From 2.13.0 until 2.14.0, PyJWS._load in jwt/api_jws.py is affected because parser catches ValueError but not RecursionError. This occurs when a deeply nested token header reaches json.loads. As a result, RecursionError escapes the documented PyJWT error hierarchy. Consequently, an unauthenticated malformed token can cause a request-level failure and HTTP 500. This issue is fixed in version 2.14.0.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/jpadilla/pyjwt/commit/06573692ebcdec8831c3927513b3e87c31fbbb62	[email protected]
https://github.com/jpadilla/pyjwt/releases/tag/2.14.0	[email protected]
https://github.com/jpadilla/pyjwt/security/advisories/GHSA-8wjv-2p76-3863	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-674	Uncontrolled Recursion	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes