Apache Airflow 
Version : 1.10.12

Using HiveServer2Hook with default connection ( assuming that auth_mechanism: PLAIN, but also set as extra to double make sure ) 

The password edit test is left empty, but from hook/ connections code and logs it seems that is not:

from airflow.hooks.base_hook import BaseHook
connection = BaseHook.get_connection('hiveserver2_hadoop_one_umlaut_default')
print(connection.password)

[2020-10-05 09:04:35,396] {base_task_runner.py:113} INFO - Job 20527: Subtask UMLAUT_CT_MASTER_TABLE_LOAD [2020-10-05 09:04:35,395] {base_hook.py:89} INFO - Using connection to: id: hiveserver2_hadoop_one_umlaut_default. Host: 146.11.85.131, Port: 10000, Schema: umlaut, Login: hdfs, **Password: XXXXXXXX**, extra: XXXXXXXX

def log_info(self):
        return ("id: {}. Host: {}, Port: {}, Schema: {}, "
                "Login: {}, Password: {}, extra: {}".
                format(self.conn_id,
                       self.host,
                       self.port,
                       self.schema,
                       self.login,
                       "XXXXXXXX" if self.password else None,
                       "XXXXXXXX" if self.extra_dejson else None))

from latest PyHive, looks like password is not None

https://github.com/dropbox/PyHive/blob/master/pyhive/hive.py

![image](https://user-images.githubusercontent.com/10634077/95061218-49a34f80-0736-11eb-9380-98638884ade3.png)

airflow/providers/apache/hive/hooks/hive.py
"""Returns a Hive connection object."""
        username: Optional[str] = None
        
        db = self.get_connection(self.hiveserver2_conn_id)  
        auth_mechanism = db.extra_dejson.get('authMechanism', 'NONE')
        if auth_mechanism == 'NONE' and db.login is None:
            
            username = 'airflow'
        kerberos_service_name = None
        if conf.get('core', 'security') == 'kerberos':
            auth_mechanism = db.extra_dejson.get('authMechanism', 'KERBEROS')
            kerberos_service_name = db.extra_dejson.get('kerberos_service_name', 'hive')
        
        if auth_mechanism == 'GSSAPI':
            self.log.warning(
                "Detected deprecated 'GSSAPI' for authMechanism for %s. Please use 'KERBEROS' instead",
                self.hiveserver2_conn_id,  
            )
            auth_mechanism = 'KERBEROS'
        from pyhive.hive import connect
        return connect(
            host=db.host,