Login attempt or request with invalid authentication

[Nezz]

iOS device model, version and app version

Model Name: iPhone 15 Pro
Software Version: iOS 18.1
App version: 2024.934

Home Assistant Core Version
2024.11.1

Describe the bug
Every now and then this notification pops up in Home Assistant:

Login attempt or request with invalid authentication from localhost (127.0.0.1). See the log for details.

When checking the logs, this comes from one of my iOS devices:

Logger: homeassistant.components.http.ban
Source: components/http/ban.py:136
integration: HTTP (documentation, issues)
First occurred: November 8, 2024 at 23:20:21 (2 occurrences)
Last logged: November 8, 2024 at 23:20:22

Login attempt or request with invalid authentication from localhost (127.0.0.1). Requested URL: '/api/websocket'. (Home Assistant/2024.10 (io.robbie.HomeAssistant; build:2024.934; iOS 18.1.0))

The iOS version and the TestFlight build number make it clear that it's me and not someone else trying to hack my network.

So far every time I saw the error it was pointing to /api/websocket

To Reproduce
Sadly I don't have repro steps, but it seems to affect a large number of people:
#2486
https://www.reddit.com/r/homeassistant/comments/1gjhlqt/login_attempt_failed/

Expected behavior

Screenshots

Additional context
I use Nabu Casa. No custom networking setup.