CVE-2025-65015

The CVE-2025-65015 issue affects the Python library joserfc (JOSE). Versions 1.3.3–1.3.5 and 1.4.0–1.4.2 embed ExceededSizeError messages with fully loaded JWT payloads, which may cause a misconfigured or fronted production web server to allow arbitrarily large bearer tokens to be logged in full ...

joserfc has Possible Uncontrolled Resource Consumption Vulnerability Triggered by Logging Arbitrarily Large JWT Token Payloads

Summary The ExceededSizeError exception messages are embedded with non-decoded JWT token parts and may cause Python logging to record an arbitrarily large, forged JWT payload. Details In situations where a misconfigured — or entirely absent — production-grade web server sits in front of a Python...