An argument injection vulnerability in Atlassian Sourcetree for Windows's URI handlers, in all versions prior to 3.1.3, allows remote attackers to gain remote code execution through the use of a crafted URI.
There was an argument injection vulnerability in Atlassian Sourcetree for macOS from version 1.2 before version 3.1.1 via filenames in Mercurial repositories. A remote attacker with permission to commit to a Mercurial repository linked in Sourcetree for macOS is able to exploit this issue to gain code execution on the system.