ALPINE-CVE-2025-22150

ALPINE-CVE-2025-22150

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.8 · Medium · Fix available

Published

2025-01-21T18:15:14.887Z

Updated

2026-08-27T22:18:02.791099930Z

Stack: system

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