CVE-2020-8137 Code injection in blamer

Critical 9.8 Published 20 Mar 2020 Updated 4 Aug 2024

Attackers can execute arbitrary code via controlled input in the blamer library, requiring an upgrade to mitigate.

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

What is CVE-2020-8137?

CVE-2020-8137 is a critical code injection vulnerability in blamer, published on 20 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Code injection vulnerability in blamer 1.0.0 and earlier may result in remote code execution when the input can be controlled by an attacker.

Weakness: CWE-94

Which versions are affected by CVE-2020-8137?

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

Package	Affected	Fixed in
`blamer` npm	All versions	`1.0.1`
`blamer` npm	All versions	`1.0.1`

Products include Blamer Project Blamer.

How do I fix CVE-2020-8137?

Upgrade blamer to 1.0.1 or later.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-8137 being exploited?

There is no known exploitation of CVE-2020-8137 in the wild and no public exploit code.

Sources

Also known as GHSA-7vm7-j8p7-h346.