joserfc: b64=false RFC7797 JWS payloads bypass JWSRegistry payload-size limits during deserialization

RFC7797 b64=false JWS payloads bypass JWSRegistry payload-size limits during deserialization SummaryTesting revealed that joserfc accepts oversized RFC7797 b64=false JWS payloads without applying JWSRegistry.maxpayloadlength.The normal JWS compact and flattened JSON paths reject payloads above th...

PT-2026-50551

Name of the Vulnerable Software and Affected Versions joserfc versions 1.3.4 through 1.6.5 Description joserfc is a Python library implementing JSON Object Signing and Encryption JOSE standards. The library fails to apply the JWSRegistry.max payload length limit when processing RFC7797 b64=false...