🛡️ CVE-2025-22150
🟡 CVSS 6.8 — Medium ✅ No Known Exploit CWE-330 NVD
6.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity Medium
CVSS Score 6.8
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE CWE-330
Public Exploit ✅ No
Source NVD
Published 2025-01-21
Updated 2026-06-02
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
undici — —
unknown — —

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