Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| jpadilla / pyjwt | affected >= 2.13.0, < 2.14.0 |
CWE
CWE-674
References
- https://github.com/jpadilla/pyjwt/security/advisories/GHSA-8wjv-2p76-3863
- https://github.com/jpadilla/pyjwt/commit/06573692ebcdec8831c3927513b3e87c31fbbb62
- https://github.com/jpadilla/pyjwt/releases/tag/2.14.0
ADP enrichment
No English description supplied.