CVE-2020-28279 flattenizer vulnerable to prototype pollution

Critical 9.8 Published Updated

Prototype pollution in the flattenizer npm library allows attackers to cause denial of service and potentially execute remote code.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2020-28279?

CVE-2020-28279 is a critical vulnerability in flattenizer, published on 29 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Prototype pollution vulnerability in 'flattenizer' versions 0.0.5 through 1.0.5 allows an attacker to cause a denial of service and may lead to remote code execution.

Which versions are affected by CVE-2020-28279?

2 open source packages ship an affected version, including flattenizer. It affects 1 product.

PackageAffectedFixed in
flattenizer npmFrom 0.0.51.1.1
flattenizer npmFrom 0.0.51.1.1

Products include Flattenizer Project Flattenizer.

How do I fix CVE-2020-28279?

Upgrade flattenizer to 1.1.1 or later.

Is CVE-2020-28279 being exploited?

There is no known exploitation of CVE-2020-28279 in the wild and no public exploit code.

Sources

Also known as GHSA-vq33-26pr-r4h6.

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