CVE-2026-101918

PyJWT is a Python implementation of JSON Web Token standards.

Pyjwt

PyJWT is a Python implementation of JSON Web Token standards. From 2.0.0a1 until 2.15.0, PyJWT PyJWKClient.get_signing_key_from_jwt is affected because payload parser catches ValueError but not RecursionError. This occurs when an attacker-controlled recursively nested payload reaches json.loads. As a result, documented PyJWT exception handling does not contain the failure. Consequently, an unauthenticated request can raise an exception that may produce an HTTP 500 response…

28. Sep 2026

Ausgewertete Quellen

• NVD
  CVE-2026-101918
• GitHub
  https://github.com/jpadilla/pyjwt/security/advisories/GHSA-42vr-xj54-vc7v