Today we are releasing versions 12.7.6, 12.6.7, and 12.5.10 for GitLab Community Edition (CE) and Enterprise Edition (EE).
These versions contain an important security fix, and we strongly recommend that all GitLab installations be upgraded to one of these versions immediately.
The vulnerability details will be made public on our issue tracker in approximately 30 days.
Please read on for more information regarding this release.
Incorrect membership handling of group sharing feature
Sharing a group with another group could grant project access to unauthorized users. The issue is now mitigated in the latest release and is assigned CVE-2020-8795.
Affects GitLab CE/EE 12.5.0 and later.
We strongly recommend that all installations running an affected version above are upgraded to the latest version as soon as possible.
To update GitLab, see the Update page.