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Reported by @devSparkle

Potential Installation takeover when default admin user is deleted


In the affected versions, when the default admin user has been deleted, it is potentially possible for an attacker to set the password of the default admin user without any authentication.


authentik 2023.8.4 and 2023.10.2 fix this issue, for other versions the workaround can be used.


authentik uses a blueprint to create the default admin user, which can also optionally set the default admin users' password from an environment variable. When the user is deleted, the initial-setup flow used to configure authentik after the first installation becomes available again.


Ensure the default admin user (Username akadmin) exists and has a password set. It is recommended to use a very strong password for this user, and store it in a secure location like a password manager. It is also possible to deactivate the user to prevent any logins as akadmin.

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