CVE-2018-3728

Name: CVE-2018-3728
Creator: NVD / NIST
Published: 2018-03-30T19:29:00.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.23%

Last modified Jun 17, 2026

CVE-2018-3728 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.23% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.23%

89.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Hapijs	Hoek	< 4.2.0
Hapijs	Hoek	>= 5.0.0, < 5.0.3

References

http://www.securityfocus.com/bid/103108Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:1263Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1264Third Party Advisory
https://github.com/hapijs/hoek/commit/32ed5c9413321fbc37da5ca81a7cbab693786deePatch, Third Party Advisory
https://hackerone.com/reports/310439Exploit, Third Party Advisory
https://nodesecurity.io/advisories/566Broken Link
https://snyk.io/vuln/npm:hoek:20180212Exploit, Patch, Third Party Advisory
http://www.securityfocus.com/bid/103108Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:1263Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1264Third Party Advisory
https://github.com/hapijs/hoek/commit/32ed5c9413321fbc37da5ca81a7cbab693786deePatch, Third Party Advisory
https://hackerone.com/reports/310439Exploit, Third Party Advisory
https://nodesecurity.io/advisories/566Broken Link
https://snyk.io/vuln/npm:hoek:20180212Exploit, Patch, Third Party Advisory

Timeline

Published: Mar 30, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-3728?

How severe is CVE-2018-3728?

Severity scoring for CVE-2018-3728 is pending analysis. The EPSS model estimates a 4.23% probability of exploitation in the next 30 days.

How do I fix CVE-2018-3728?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-3728?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST