CVE-2024-21896

A flaw was found in Node.js. The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a buffer, the implementation uses Buffer.from() to obtain a buffer from the result of path.resolve(). By monkey-patching buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability.