How severe is CVE-2024-21891?

CVE-2024-21891 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-21891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21891?

CVE-2024-21891 affects Nodejs Node.js. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21891?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-21891 have an EU (EUVD) identifier?

Yes. CVE-2024-21891 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19502.

When was CVE-2024-21891 published?

CVE-2024-21891 was published on 2024-02-20 and last updated on 2026-06-17.

CVE-2024-21891

CVE-2024-21891 is a high-severity vulnerability in Nodejs Node.js with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19502
Weakness: CWE-22
Affected product: Nodejs Node.js
Published: 2024-02-20
Last modified: 2026-06-17

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.

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.
How severe is CVE-2024-21891?: CVE-2024-21891 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-21891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21891?: CVE-2024-21891 affects Nodejs Node.js. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-21891 have an EU (EUVD) identifier?: Yes. CVE-2024-21891 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19502.
When was CVE-2024-21891 published?: CVE-2024-21891 was published on 2024-02-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*

More vulnerabilities in Nodejs Node.js

CVE-2026-21636 — Critical (CVSS 10.0): A flaw in Node.js's permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when…
CVE-2015-0278 — Critical (CVSS 10.0): libuv before 0.10.34 does not properly drop group privileges, which allows context-dependent attackers to gain…
CVE-2026-48930 — Critical (CVSS 9.8): A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to…
CVE-2024-3566 — Critical (CVSS 9.8): A command inject vulnerability allows an attacker to perform command injection on Windows applications that indirectly…
CVE-2024-21896 — Critical (CVSS 9.8): The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the…
CVE-2023-39332 — Critical (CVSS 9.8): Various `node:fs` functions allow specifying paths as either strings or `Uint8Array` objects. In Node.js environments,…

All CVEs affecting Nodejs Node.js →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →