CVE-2026-102946 joserfc: JWS signature verification bypass via empty signatures array in jws.deserialize_json

joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption JOSE standards. Prior to 1.7.4, joserfc.jws.deserializejson accepts a JWS General JSON Serialization with an empty signatures array as authenticated. The verifygeneraljson loop performs no...