Amazon Linux AMI Security Advisory: ALAS-2018-1092
Advisory Release Date: 2018-10-18 22:22 Pacific
Gitolite before 3.6.9 does not (in certain configurations involving @all or a regex) properly restrict access to a Git repository that is in the process of being migrated until the full set of migration steps has been completed. This can allow valid users to obtain unintended access.
Run yum update gitolite3 to update your system.