CVE-2026-24888CWE-1321

Maker.js Vulnerable to Unsafe Property Copying in makerjs.extendObject

Medium · published January 28, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
62.9
In the wild
Unconfirmed
What it is

Maker.js is a 2D vector line drawing and shape modeling for CNC and laser cutters. In versions up to and including 0.19.1, the `makerjs.extendObject` function copies properties from source objects without proper validation, potentially exposing applications to security risks. The function lacks `hasOwnProperty()` checks and does not filter dangerous keys, allowing inherited properties and potentially malicious properties to be copied to target objects. A patch is available in commit 85e0f12bd868974b891601a141974f929dec36b8, which is expected to be part of version 0.19.2.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.01012 · 62.9th percentile
Weakness
CWE-1321 · Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Published
2026-01-28T21:35Z
EPSS history
Timeline
  • 28 JAN 21:35Z
    Maker.js Vulnerable to Unsafe Property Copying in makerjs.extendObject
    cvelistv5