Skip to main content
HIGH

CVE-2018-3728

CVSS v3

8.8

HIGH

EPSS Score

4.2 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for hoek.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • hoeknpmall versions · fixed in 4.2.1

Vendor advisories

  • CVE-2018-3728 Red Hat Product Security126 products fixed · 5 known affected

    hoek: Prototype pollution in utilities function

    nodejs-hoek.src as a component of Red Hat Enterprise Linux 8 · nodejs-hoek as a component of Red Hat OpenShift Enterprise 3 · nodejs-hoek.src as a component of Red Hat OpenShift Enterprise 3

  • RHSA-2021:3917 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Quay v3.6.0 security, bug fix and enhancement update

  • RHSA-2018:1263 Red Hat Product Security104 products fixed

    Red Hat Security Advisory: Red Hat Mobile Application Platform 4.6.0 release - RPMs

  • RHSA-2018:1264 Red Hat Product Security21 products fixed

    Red Hat Security Advisory: Red Hat Mobile Application Platform 4.6.0 Release - Container Images

Full record on NVD

Description

hoek node module before 4.2.0 and 5.0.x before 5.0.3 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability via 'merge' and 'applyToDefaults' functions, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.

Technical details

Published
2018-03-30

Frequently asked questions

What is CVE-2018-3728?

hoek node module before 4.2.0 and 5.0.x before 5.0.3 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability via 'merge' and 'applyToDefaults' functions, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.

Is CVE-2018-3728 actively exploited?

Active exploitation of CVE-2018-3728 has not been confirmed. Its EPSS score was 4.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-3728?

CVE-2018-3728 has a CVSS v3 base score of 8.8 (HIGH severity).

Running hoek? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this productCISA KEV additions, October 2026Search CVEs

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database