One user can access my repository but I cannot find his permission settings

[y.oda]

One user doesn't have permission to my repo, but he can access it.
I checked the below settings, but I couldn't find his permission settings.

Repository settings > User and group access
Workspace > members
Workspace settings > Users on plan
Workspace settings > User directory

Please advise where I should check other than the above.

[Caroline R]

Hi, @y.oda, welcome to the community! 

As we will need to confirm who is the user who is able to see this repo and the repository name, I have created an internal ticket for you using the email of your community account, so you don't have to share this information here. 

You should have received an email with a link to the support ticket. Just in case you haven't received it, please feel free to let me know and I can post the ticket URL here. The ticket will be visible only to you and Atlassian staff, no one else can view its contents even if they have the URL.

Please feel free to let me know if you have any questions.

Kind regards, 
Caroline