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Case File

CVE-2023-39332

CRITICAL · CVSS 9.8 EPSS 1.82%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-10-18 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2023-39332
Severity
CRITICAL
CVSS
9.8
EPSS
1.82%

Original NVD Description

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.

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