CVE-2023-32004: Permission model bypass by specifying a path traversal sequence in a Buffer

A vulnerability has been discovered in Node.js version 20, specifically within the experimental permission model. This flaw relates to improper handling of Buffers in file system APIs causing a traversal path to bypass when verifying file permissions.

This vulnerability affects all users using the experimental permission model in Node.js 20.

Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

Node.js could allow a remote attacker to bypass security restrictions, caused by the improper handling of Buffers in file system APIs within the experimental permission model. By specifying a path traversal sequence in a Buffer, an attacker could exploit this vulnerability to cause a path traversal bypass when verifying file permissions.

— IBM