Description (CNA)
PyJWT is a Python implementation of JSON Web Token standards. Prior to 2.14.0, PyJWT get_signing_key_from_jwt is affected because unknown kid misses force refreshes without a negative cache or minimum refresh interval. This occurs when unauthenticated tokens repeatedly use the same unknown kid or varying kid values absent from the cached JWKS. As a result, each cache miss causes PyJWKClient to refresh the JWKS. Consequently, attacker traffic can amplify outbound requests to the configured JWKS endpoint. This issue is fixed in version 2.14.0.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| jpadilla / pyjwt | affected < 2.14.0 |
CWE
CWE-770
References
- https://github.com/jpadilla/pyjwt/security/advisories/GHSA-2gx3-rcp4-g85q
- https://github.com/jpadilla/pyjwt/commit/ba4853a75fb9676362da17f67d0f64bd18afd4e1
- https://github.com/jpadilla/pyjwt/releases/tag/2.14.0
ADP enrichment
No English description supplied.