CVE-2023-39332

Date: October 17, 2023

Various "node:fs" functions allow specifying paths as either strings or "Uint8Array" objects. In Node.js environments, the "Buffer" class extends the "Uint8Array" class. Node.js prevents path traversal through strings (see CVE-2023-30584) and "Buffer" objects (see CVE-2023-32004), but not through non-"Buffer" "Uint8Array" objects. This is distinct from CVE-2023-32004 which only referred to "Buffer" objects. However, the vulnerability follows the same pattern using "Uint8Array" instead of "Buffer". Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

Language: JS