CVE-2021-26707

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    CVE-2021-26707

    Published: 2 Jun 2021Last Modified: 20 Oct 2026

    Summary:

    Details: The merge-deep library before 3.0.3 for Node.js can be tricked into overwriting properties of Object.prototype or adding new properties to it. These properties are then inherited by every object in the program, thus facilitating prototype-pollution attacks against applications using this library.

    References: https://security.netapp.com/advisory/ntap-20210716-0008/, https://securitylab.github.com/advisories/GHSL-2020-160-merge-deep/, https://www.npmjs.com/package/merge-deep, https://github.com/jonschlinkert/merge-deep/commit/11e5dd56de8a6aed0b1ed022089dbce6968d82a5

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -628ff47c9d824ccf21adf9a2b7cc6b74632e11a1

    Affected versions

    3.0.2
    3.0.1
    3.0.0

    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
    CVE-2021-26707 | CVE-DB