GitAhead through 2.7.1 on macOS contains a command injection vulnerability that allows attackers to execute shell commands by crafting repository filenames interpolated unescaped into the Show in Finder AppleScript. Attackers can commit a file whose path contains a double quote followed by a do shell script payload, which runs as the victim user when Show in Finder is chosen.

GitAhead through 2.7.1 contains an OS command injection vulnerability in src/git/Filter.cpp that allows malicious repositories to execute commands by substituting crafted filenames into clean/smudge filter commands. Attackers can ship files named with $(command) selected via .gitattributes so checkout or staging runs the command through bash -c as the victim.

GitAhead 2.5.0 through 2.7.1 contains an insecure update mechanism that installs downloaded updates without integrity or signature verification and permanently ignores TLS errors after one SSL error dialog. Network attackers presenting an invalid certificate once can intercept later automatic update checks, offer a fake version, and execute code as the user upon installation.