SERVER-76111: the common users(with readWrite role on system db) can modify the system collection's data,it is very dangerous,this can cause serious problems.normal collection perfect by y123456yz · Pull Request #1539 · mongodb/mongo

When we create an account that can read and write the system db(admin,config,local), the account can modify the system namespace(config.transactions,config.chunks.xxx,config.cache.xx, etc).The reas...