Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/khalen.fredieu/tools/triage-scripts/triage_scripts/lib/python3.8/site-packages/pymongo/mongo_client.py", line 774, in __init__
    res = uri_parser.parse_uri(
  File "/Users/khalen.fredieu/tools/triage-scripts/triage_scripts/lib/python3.8/site-packages/pymongo/uri_parser.py", line 568, in parse_uri
    nodes = split_hosts(hosts, default_port=default_port)
  File "/Users/khalen.fredieu/tools/triage-scripts/triage_scripts/lib/python3.8/site-packages/pymongo/uri_parser.py", line 381, in split_hosts
    nodes.append(parse_host(entity, port))
  File "/Users/khalen.fredieu/tools/triage-scripts/triage_scripts/lib/python3.8/site-packages/pymongo/uri_parser.py", line 147, in parse_host
    raise ValueError(f"Port must be an integer between 0 and 65535: {port!r}")
ValueError: Port must be an integer between 0 and 65535: 'pass' 

Detailed steps to reproduce the problem?

1. Instantiate a MongoClient with a connection string featuring a user:password, but have the password end in a forward slash

2. MongoClient("mongodb://user:pass/@localhost:27017") 

Passwords are often changed manually, this bug was revealed after a manual password change led to the traceback above, and a password was printed to application logs. 

Definition of done: what must be done to consider the task complete?

Avoid parsing passwords which have not been percent-encoded one would assume the parser should fail when it observes a malformed password. Alternatively, do not print potential password values in exceptions. 

The exact Python version used, with patch level:

3.8.0 (v3.8.0:fa919fdf25, Oct 14 2019, 10:23:27) }}{{[Clang 6.0 (clang-600.0.57)]

The exact version of PyMongo used, with patch level:

4.8.0, }}{{True

Describe how MongoDB is set up. Local vs Hosted, version, topology, load balanced, etc.

Local, replica set, 3 nodes.

The operating system and version (e.g. Windows 7, OSX 10.8, ...)

Mac OS Sonoma 14.5

Web framework or asynchronous network library used, if any, with version (e.g. Django 1.7, mod_wsgi 4.3.0, gevent 1.0.1, Tornado 4.0.2, ...)

N/A

Security Vulnerabilities

If you’ve identified a security vulnerability in a driver or any other MongoDB project, please report it according to the instructions here