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No exploitation reportedFix available

CVE-2024-21891

No exploitation reported by the sources we read.

  • Published2024-02-20
  • Fixed in21.6.2 · 20.11.1
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions, which can be overwitten with user-defined implementations leading to filesystem permission model bypass through path traversal attack. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

Timeline

dates in UTC
  1. 2024-02-2002:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-21891?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-21891?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV · CISA-ADP
Node.js
BranchAffectedFixed in
21.x≥ 21.0.0, < 21.6.221.6.2
20.x≥ 20.0.0, < 20.11.120.11.1
Nodejs
BranchAffectedFixed in
21.6= 21.6.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • nodejsAlmaLinux:9all versions · fixed in 1:20.11.1-1.module_el9.3.0+88+29afeaa2and 3 other packages
  • nodejsAlmaLinux:8all versions · fixed in 1:20.11.1-1.module_el8.9.0+3775+d8460d35and 3 other packages
  • nodejs-nodemonAlmaLinux:9all versions · fixed in 3.0.1-1.module_el9.3.0+47+c33bc288
  • nodejs-nodemonAlmaLinux:8all versions · fixed in 3.0.1-1.module_el8.9.0+3731+490e3ce5
  • nodejs-packagingAlmaLinux:9all versions · fixed in 2021.06-4.module_el9.3.0+48+1cf146a1and 1 other package
  • nodejs-packagingAlmaLinux:8all versions · fixed in 2021.06-4.module_el8.9.0+3684+11b9e959and 1 other package
  • npmAlmaLinux:9all versions · fixed in 1:10.2.4-1.20.11.1.1.module_el9.3.0+88+29afeaa2
  • npmAlmaLinux:8all versions · fixed in 1:10.2.4-1.20.11.1.1.module_el8.9.0+3775+d8460d35

Full record on NVD

Fix

  1. Update Node.js to 21.6.2 · 20.11.1

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2024-11-20
  • OpenCVESSVC decisionnone—
  • NVDCVSS 3.18.8read 2026-10-23
  • CNACVSS 3.07.9read 2026-10-23
  • CISA-ADPweakness (CWE)CWE-222024-05-23
  • NVDweakness (CWE)CWE-22read 2026-10-23
  • FIRST EPSSEPSS score1.2 %2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2024-02-20
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2024-21891?

Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions, which can be overwitten with user-defined implementations leading to filesystem permission model bypass through path traversal attack. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

Is CVE-2024-21891 actively exploited?

Active exploitation of CVE-2024-21891 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-21891?

CVE-2024-21891 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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