GHSA-4g77-cvgw-grvw

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    GHSA-4g77-cvgw-grvw

    Published: 5 Feb 2022Last Modified: 8 Jul 2026

    Summary: Prototype Pollution in putil-merge

    Details: This affects the package putil-merge before 3.8.0. The merge() function does not check the values passed into the argument. An attacker can supply a malicious value by adjusting the value to include the constructor property. Note: This vulnerability derives from an incomplete fix in https://security.snyk.io/vuln/SNYK-JS-PUTILMERGE-1317077

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-23470, https://github.com/panates/putil-merge/commit/476d00078dfb2827d7c9ee0f2392c81b864f7bc5, https://github.com/panates/putil-merge, https://snyk.io/vuln/SNYK-JS-PUTILMERGE-2391487

    Affected packages

    Package

    Name: putil-merge

    Purl: pkg:npm/putil-merge

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -3.8.0

    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-4g77-cvgw-grvw | CVE-DB