Re:Docker Hub Hacked – 190k accounts, GitHub tokens revoked,...
by typpo on Saturday April 27, 2019 @01:54AM
(#19764030)
Docker Hub's Github integration requires both read and write access for private repositories. In fact, if you want it to set up deploy keys I think it requires Admin access.
See this issue: https://github.com/docker/hub-feedback/issues/873