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CVE-2025-47279

3.1 · LOW

Undici is an HTTP/1.1 client for Node.js.

Published May 15, 2025CWE-401EPSS 0.34%

Overview

CVE-2025-47279 is a low-severity vulnerability. It was published on May 15, 2025 and has a CVSS 3.1 base score of 3.1 (LOW).

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

Technical description

Undici is an HTTP/1.1 client for Node.js. Prior to versions 5.29.0, 6.21.2, and 7.5.0, applications that use undici to implement a webhook-like system are vulnerable. If the attacker set up a server with an invalid certificate, and they can force the application to call the webhook repeatedly, then they can cause a memory leak. This has been patched in versions 5.29.0, 6.21.2, and 7.5.0. As a workaound, avoid calling a webhook repeatedly if the webhook fails.

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

GitHubgithub.com/nodejs/undici/commit/f317618ec28753a4218beccea048bcf89c36db25GitHubgithub.com/nodejs/undici/issues/3895GitHubgithub.com/nodejs/undici/pull/4088GitHubgithub.com/nodejs/undici/security/advisories/GHSA-cxrh-j4jr-qwg3

How CyberStrike helps

Frequently asked questions

What is CVE-2025-47279?

CVE-2025-47279 is a low-severity vulnerability. It was published on May 15, 2025 and has a CVSS 3.1 base score of 3.1 (LOW).

How severe is CVE-2025-47279?

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

How do I fix or remediate CVE-2025-47279?

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-2025-47279?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-47279 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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