CVE-2020-8237 Uncontrolled Resource Consumption in json-bigint
Prototype pollution in the json-bigint npm library allows attackers to cause a denial-of-service condition.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-8237?
CVE-2020-8237 is a high-severity denial of service vulnerability in json-bigint, published on 18 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Prototype pollution in json-bigint npm package < 1.0.0 may lead to a denial-of-service (DoS) attack.
Weakness: CWE-400
Which versions are affected by CVE-2020-8237?
2 open source packages ship an affected version, including json-bigint. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
json-bigint npm | All versions | 1.0.0 |
json-bigint npm | All versions | 1.0.0 |
Products include Json-Bigint Project Json-Bigint.
How do I fix CVE-2020-8237?
Upgrade json-bigint to 1.0.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-8237 being exploited?
There is no known exploitation of CVE-2020-8237 in the wild and no public exploit code.
Sources
Also known as CLSA-2026-1790541837, GHSA-wgfq-7857-4jcc.