How do I change a MongoDB user's password?

You need to use changeUserPassword() to change a user’s password. Let us first create a user with some roles. Following is the query to create a user in MongoDB −

> use admin switched to db admin > db.createUser( ...    { ...       user: "Chris", ...       pwd: "chris", ...       roles: [ { role: "readWrite", db: "test" } ] ...    } ... ); Successfully added user: {    "user" : "Chris",    "roles" : [       {          "role" : "readWrite",          "db" : "test"       }    ] }

Let us display the user from test database −

> db.getUser("Chris");

This will produce the following output −

{    "_id" : "admin.Chris",    "user" : "Chris",    "db" : "admin",    "roles" : [       {          "role" : "readWrite",          "db" : "test"       }    ],    "mechanisms" : [       "SCRAM-SHA-1",       "SCRAM-SHA-256"    ] }

Following is the query to change a MongoDB user's password.

> db.changeUserPassword("Chris", "123456");

The password has been changed.