CVE-2025-22150

MEDIUM

Undici <5.28.5,6.21.1,7.2.3 - Info Disclosure

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 6.8
EPSS 0.0060
EPSS Percentile 69.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-330
Status published
Products (4)
nodejs/undici >= 4.5.0, < 5.28.5
nodejs/undici >= 6.0.0, < 6.21.1
nodejs/undici >= 7.0.0, < 7.2.3
npm/undici 4.5.0 - 5.28.5npm
Published Jan 21, 2025
Tracked Since Feb 18, 2026