Impact The issue allows for exposure of the home directory on Unix systems when using Bash with the escape or escapeAll functions from the shescape API with the interpolation option set to true. Other tested shells, Dash and Zsh, are not affected. “`javascript const cp = require("child_process"); const shescape = require("shescape"); const payload = "home_directory=~"; const options = { interpolation: true }; console.log(cp.execSync(echo ${shescape.escape(payload, options)})); // home_directory=/home/user “` Depending on how the output of shescape is used, directory traversal may be possible in the application using shescape. Patches The issue was patched in v1.5.1. Workarounds Manually escape all instances of the tilde character (~) using arg.replace(/~/g, "\~"). References See GitHub issue…