Jenkins has a missing permission check, allowing users to obtain agent names

Jenkins 2.527 and earlier, LTS 2.516.2 and earlier does not perform a permission check in the sidepanel of a page intentionally accessible to users lacking Overall/Read permission.

This allows attackers without Overall/Read permission to list agent names through its sidepanel executors widget.

Jenkins 2.528, LTS 2.516.3 removes the sidepanel from the affected view.