Description (CNA)
PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT is_pem_format is affected because lazy PEM regular expression backtracks extensively. This occurs when a certificate-like input contains repeated BEGIN markers without a matching END marker. As a result, is_pem_format performs unbounded backtracking while searching for a PEM end marker. Consequently, an attacker can cause intensive CPU consumption. This issue is fixed in version 2.14.0.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| jpadilla / pyjwt | affected < 2.14.0 |
CWE
CWE-1333
References
- https://github.com/jpadilla/pyjwt/security/advisories/GHSA-jwrc-g2q2-pq5p
- https://github.com/jpadilla/pyjwt/commit/8b4e233a22206b34ec1186e912e75c0b2396ac07
- https://github.com/jpadilla/pyjwt/releases/tag/2.14.0
ADP enrichment
No English description supplied.