GHSA-g4rg-993r-mgx7

    Dashboard / Vulnerabilities / GHSA-g4rg-993r-mgx7

    GHSA-g4rg-993r-mgx7

    Published: 24 May 2022Last Modified: 10 Sept 2026

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

    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.

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-42740, https://github.com/ljharb/shell-quote/commit/5799416ed454aa4ec9afafc895b4e31760ea1abe, https://github.com/ljharb/shell-quote, https://github.com/ljharb/shell-quote/blob/master/CHANGELOG.md#173, https://www.npmjs.com/package/shell-quote

    Affected packages

    Package

    Name: shell-quote

    Purl: pkg:npm/shell-quote

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 1.6.3
    Fixed -1.7.3

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-g4rg-993r-mgx7 | CVE-DB