[Bug]: Too many authentication attempts on logout

[ysalmon]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

I logged out from my Nextcloud instance. It got back to the login page (index.php/login?clear=1), but, strangely, displayed a red message saying there were too many authentication attempts and to wait 30 seconds before trying again.

Although I had not recently tried to authenticate (I logged out), and moreover I have never failed to authenticate when I wanted to.

Steps to reproduce

1. Log out of Nextcloud.

Expected behavior

The login page should be displayed without a message about authentication attempts.

Nextcloud Server version

33

Operating system

Debian/Ubuntu

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

List of activated Apps

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

Additional info

No response

[joshtrichards]

Please check Admin settings->Overview for warnings or errors.

And there is additional logging available to get to the bottom of things:

https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/bruteforce_configuration.html