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CVE-2025-22150

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Date: January 21, 2025

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.

Severity Score

Severity Score

Weakness Type (CWE)

Use of Insufficiently Random Values

CWE-330

Top Fix

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Upgrade Version

Upgrade to version undici - 6.21.1;undici - 5.28.5;undici - 7.2.3

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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