Public proof of conceptFix available

CVE-2026-24888

Q: Is CVE-2026-24888 actively exploited?

A proof-of-concept exploit exists for CVE-2026-24888, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2026-24888?

CVE-2026-24888 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2026-01-28
WeaknessCWE-1321

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2026-01-2822:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-24888?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-24888?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Microsoft maker.js

Branch	Affected	Fixed in	Source
0.19	≤ 0.19.1	no fix published	NVD

makerjs

Branch	Affected	Fixed in	Source
0.19	< 0.19.2	0.19.2	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

github.comPatch
github.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionpoc2026-01-29
OpenCVESSVC decisionpoc—
CNACVSS 3.16.5read 2026-10-23
NVDCVSS 3.19.8read 2026-10-23
CNAweakness (CWE)CWE-1321read 2026-10-23
FIRST EPSSEPSS score1.0 %2026-10-22
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-01-28
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2026-24888?

Is CVE-2026-24888 actively exploited?

A proof-of-concept exploit exists for CVE-2026-24888, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-24888?

CVE-2026-24888 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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