What is CVE-2018-16487?

CVE-2018-16487 is a medium-severity vulnerability in HackerOne Lodash, classified under Uncontrolled Resource Consumption. CVSS score: 5.6/10. Published 2019-02-01.

How severe is CVE-2018-16487?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Is CVE-2018-16487 known to be exploited?

30 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in HackerOne Lodash

CVE-2018-16487

A prototype pollution vulnerability was found in lodash <4.17.11 where the functions merge, mergeWith, and defaultsDeep can be tricked into adding or modifying properties of Object.prototype.

Vulnerability class: DoS (Denial of Service)

Published 2019-02-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.016 (74.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

HackerOne Lodash — versions <4.7.11
Lodash

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

Public proof-of-concept exploits

References

hackerone.com/reports/380873 (Exploit, Third Party Advisory, Issue Tracking)
security.netapp.com/advisory/ntap-20190919-0004/ (Third Party Advisory)

Frequently asked questions

What is CVE-2018-16487?: CVE-2018-16487 is a medium-severity vulnerability in HackerOne Lodash, classified under Uncontrolled Resource Consumption. CVSS score: 5.6/10. Published 2019-02-01.
How severe is CVE-2018-16487?: Medium severity. CVSS v3 base score is 5.6 out of 10.
Is CVE-2018-16487 known to be exploited?: 30 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.