Would be pretty incredible if the git branch command had a vulnerability.

On the other hand, having a git aware PS1 would also immediately alert you to the fact that a user had created a top level .git folder, thereby allowing you to prevent the first cve here.

> having a git aware PS1 would also immediately alert you to the fact that a user had created a top level .git folder,

And to the fact that someone other than me had write access to my disk, in which case git is probably the least of my worries.