IBM Concert 1.0.0 through 2.0.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information.
pyjwt v2.10.1 was discovered to contain weak encryption. NOTE: this is disputed by the Supplier because the key length is chosen by the application that uses the library (admittedly, library users may benefit from a minimum value and a mechanism for opting in to strict enforcement).