CVE-2026-24888
Unknown Unknown - Not Provided
Insecure Object Extension in Maker.js Allows Property Injection

Publication date: 2026-01-28

Last updated on: 2026-02-09

Assigner: GitHub, Inc.

Description
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.
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Meta Information
Published
2026-01-28
Last Modified
2026-02-09
Generated
2026-06-16
AI Q&A
2026-01-29
EPSS Evaluated
2026-06-15
NVD
CVE-2026-24888
EUVD
EUVD-2026-4851
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft maker.js to 0.19.1 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-1321 The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
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Executive Summary

The vulnerability in Maker.js up to version 0.19.1 involves the makerjs.extendObject function, which copies properties from source objects without proper validation. It lacks hasOwnProperty() checks and does not filter dangerous keys, allowing inherited and potentially malicious properties to be copied to target objects. This can lead to security risks in applications using this function.

Impact Analysis

This vulnerability can impact you by exposing your application to security risks such as unauthorized property injection or manipulation, which could lead to information disclosure or integrity issues. Since the function copies properties without validation, attackers might exploit this to inject malicious properties, potentially compromising the application's behavior or data.

Mitigation Strategies

Update Maker.js to version 0.19.2 or later, which includes the patch fixing the vulnerability in the makerjs.extendObject function. Avoid using versions up to and including 0.19.1 until patched.

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