What is CVE-2020-8237?

CVE-2020-8237 is a high-severity vulnerability in Json-Bigint Project, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2020-09-18.

How severe is CVE-2020-8237?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Json-Bigint Project

CVE-2020-8237

Prototype pollution in json-bigint npm package < 1.0.0 may lead to a denial-of-service (DoS) attack.

Vulnerability class: DoS (Denial of Service)

Published 2020-09-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Json-Bigint Project
Json-Bigint — versions Fixed in version 1.0.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

hackerone.com/reports/916430 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-8237?: CVE-2020-8237 is a high-severity vulnerability in Json-Bigint Project, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2020-09-18.
How severe is CVE-2020-8237?: High severity. CVSS v3 base score is 7.5 out of 10.