CVE-2025-22150 – undici

Package

Manager: npm
Name: undici
Vulnerable Version: >=4.5.0 <5.28.5 || >=6.0.0 <6.21.1 || >=7.0.0 <7.2.3

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00049 pctl0.14798

Details

Use of Insufficiently Random Values in undici ### Impact [Undici `fetch()` uses Math.random()](https://github.com/nodejs/undici/blob/8b06b8250907d92fead664b3368f1d2aa27c1f35/lib/web/fetch/body.js#L113) 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. ### Patches This is fixed in 5.28.5; 6.21.1; 7.2.3. ### Workarounds Do not issue multipart requests to attacker controlled servers. ### References * https://hackerone.com/reports/2913312 * https://blog.securityevaluators.com/hacking-the-javascript-lottery-80cc437e3b7f

Metadata

Created: 2025-01-21T21:10:47Z
Modified: 2025-01-21T21:10:47Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/01/GHSA-c76h-2ccp-4975/GHSA-c76h-2ccp-4975.json
CWE IDs: ["CWE-330"]
Alternative ID: GHSA-c76h-2ccp-4975
Finding: F034
Auto approve: 1