DISPUTED jsonpickle through 1.4.1 allows remote code execution during deserialization of a malicious payload through the decode() function. Note: It has been argued that this is expected and clearly documented behaviour. pickle is known to be capable of causing arbitrary code execution, and must not be used with un-trusted data.
access.redhat.com/security/cve/CVE-2020-22083
gist.github.com/j0lt-github/bb543e77a1a10c33cb56cf23d0837874
github.com/j0lt-github/python-deserialization-attack-payload-generator
github.com/jsonpickle/jsonpickle/issues/332
github.com/jsonpickle/jsonpickle/issues/332#issuecomment-747807494
versprite.com/blog/application-security/into-the-jar-jsonpickle-exploitation/