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CVE-2024-21891

8.8 · HIGH

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 m…

Published Feb 20, 2024CWE-22EPSS 1.24%

Overview

CVE-2024-21891 is a high-severity vulnerability. It was published on February 20, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2024/03/11/1Refhackerone.com/reports/2259914Refsecurity.netapp.com/advisory/ntap-20240315-0005/Refwww.openwall.com/lists/oss-security/2024/03/11/1Refhackerone.com/reports/2259914Refsecurity.netapp.com/advisory/ntap-20240315-0005/

How CyberStrike helps

Frequently asked questions

What is CVE-2024-21891?

CVE-2024-21891 is a high-severity vulnerability. It was published on February 20, 2024 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-21891?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-21891?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-21891?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-21891 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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