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.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-43063 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00375}

epss

{'score': 0.00385}


Thu, 13 Feb 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2025-04-30T22:25:06.309Z

Reserved: 2023-07-28T01:00:12.349Z

Link: CVE-2023-39332

cve-icon Vulnrichment

Updated: 2024-08-02T18:02:06.901Z

cve-icon NVD

Status : Modified

Published: 2023-10-18T04:15:11.330

Modified: 2024-11-21T08:15:10.603

Link: CVE-2023-39332

cve-icon Redhat

Severity : Important

Publid Date: 2023-10-13T00:00:00Z

Links: CVE-2023-39332 - Bugzilla

cve-icon OpenCVE Enrichment

No data.