CVE-2022-20001

fish is a command line shell. fish version 3.1.0 through version 3.3.1 is
vulnerable to arbitrary code execution. git repositories can contain
per-repository configuration that change the behavior of git, including
running arbitrary commands. When using the default configuration of fish,
changing to a directory automatically runs git commands in order to
display information about the current repository in the prompt. If an
attacker can convince a user to change their current directory into one
controlled by the attacker, such as on a shared file system or extracted
archive, fish will run arbitrary commands under the attacker’s control.
This problem has been fixed in fish 3.4.0. Note that running git in these
directories, including using the git tab completion, remains a potential
trigger for this issue. As a workaround, remove the fish_git_prompt
function from the prompt.