GHSA-qg8p-v9q4-gh34

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    GHSA-qg8p-v9q4-gh34

    Published: 18 Feb 2019Last Modified: 10 Sept 2026

    Summary: Potential Command Injection in shell-quote

    Details: Affected versions of `shell-quote` do not properly escape command line arguments, which may result in command injection if the library is used to escape user input destined for use as command line arguments. ## Proof of Concept: The following characters are not escaped properly: `>`,`;`,`{`,`}` Bash has a neat but not well known feature known as "Bash Brace Expansion", wherein a sub-command can be executed without spaces by running it between a set of `{}` and using the `,` instead of ` ` to seperate arguments. Because of this, full command injection is possible even though it was initially thought to be impossible. ``` const quote = require('shell-quote').quote; console.log(quote(['a;{echo,test,123,234}'])); // Actual "a;{echo,test,123,234}" // Expected "a\;\{echo,test,123,234\}" // Functional Equivalent "a; echo 'test' '123' '1234'" ``` ## Recommendation Update to version 1.6.1 or later.

    Affected packages

    Package

    Name: shell-quote

    Purl: pkg:npm/shell-quote

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.6.1

    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