In chainmaker-go (aka ChainMaker) before 2.3.6, multiple updates to a single node's configuration can cause other normal nodes to perform concurrent read and write operations on a map, leading to a panic.
FISCO BCOS 3.11.0 has an issue with synchronization of the transaction pool that can, for example, be observed when a malicious node (that has modified the codebase to allow a large min_seal_time value) joins a blockchain network.