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CVE-2025-22150

6.8 · MEDIUM

Undici is an HTTP/1.1 client.

Published Jan 21, 2025CWE-330EPSS 0.76%

Overview

CVE-2025-22150 is a medium-severity vulnerability. It was published on January 21, 2025 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Undici is an HTTP/1.1 client. Starting in version 4.5.0 and prior to versions 5.28.5, 6.21.1, and 7.2.3, undici uses `Math.random()` to choose the boundary for a multipart/form-data request. It is known that the output of `Math.random()` can be predicted if several of its generated values are known. If there is a mechanism in an app that sends multipart requests to an attacker-controlled website, they can use this to leak the necessary values. Therefore, an attacker can tamper with the requests going to the backend APIs if certain conditions are met. This is fixed in versions 5.28.5, 6.21.1, and 7.2.3. As a workaround, do not issue multipart requests to attacker controlled servers.

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

Refblog.securityevaluators.com/hacking-the-javascript-lottery-80cc437e3b7fGitHubgithub.com/nodejs/undici/blob/8b06b8250907d92fead664b3368f1d2aa27c1f35/lib/web/fetch/body.js#L113GitHubgithub.com/nodejs/undici/commit/711e20772764c29f6622ddc937c63b6eefdf07d0GitHubgithub.com/nodejs/undici/commit/c2d78cd19fe4f4c621424491e26ce299e65e934aGitHubgithub.com/nodejs/undici/commit/c3acc6050b781b827d80c86cbbab34f14458d385GitHubgithub.com/nodejs/undici/security/advisories/GHSA-c76h-2ccp-4975Refhackerone.com/reports/2913312

How CyberStrike helps

Frequently asked questions

What is CVE-2025-22150?

CVE-2025-22150 is a medium-severity vulnerability. It was published on January 21, 2025 and has a CVSS 3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2025-22150?

This vulnerability has a CVSS 3.1 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-22150?

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-2025-22150?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-22150 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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