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CRITICAL9.8

GHSA-g4rg-993r-mgx7

Improper Neutralization of Special Elements used in a Command in Shell-quote

Quick fix

GHSA-g4rg-993r-mgx7 — shell-quote: upgrade to the fixed version with the command below.

npm install shell-quote@1.7.3

Details

The shell-quote package before 1.7.3 for Node.js allows command injection. An attacker can inject unescaped shell metacharacters through a regex designed to support Windows drive letters. If the output of this package is passed to a real shell as a quoted argument to a command with `exec()`, an attacker can inject arbitrary commands. This is because the Windows drive letter regex character class is `[A-z]` instead of the correct `[A-Za-z]`. Several shell metacharacters exist in the space between capital letter Z and lower case letter a, such as the backtick character.

Are you affected?

Enter the version of the package you're using.

Affected packages

npm/shell-quote
Introduced in: 1.6.3Fixed in: 1.7.3
Fixnpm install shell-quote@1.7.3

References