Predictable Value Range from Previous Values

Overview Affected versions of this package are vulnerable to Predictable Value Range from Previous Values via the boundary value, which uses Math.random. An attacker can manipulate HTTP request boundaries by exploiting predictable values, potentially leading to HTTP parameter pollution. Remediati...

Predictable Boundary Selection

Undici is vulnerable to predictable boundary selection. The vulnerability is due to the use of Math.random to choose the boundary, which can be predicted if several of its values are known, potentially allowing an attacker to tamper with requests to backend APIs...

CVE-2025-22150 Undici Uses Insufficiently Random Values

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...