CVE-2021-43138

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    CVE-2021-43138

    Published: 6 Apr 2022Last Modified: 8 Jul 2026

    Summary:

    Details: In Async before 2.6.4 and 3.x before 3.2.2, a malicious user can obtain privileges via the mapValues() method, aka lib/internal/iterator.js createObjectIterator prototype pollution.

    References: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTEUUTNIEBHGKUKKLNUZSV7IEP6IP3Q3/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UM6XJ73Q3NAM5KSGCOKJ2ZIA6GUWUJLK/, https://github.com/caolan/async/blob/master/lib/internal/iterator.js, https://github.com/caolan/async/blob/master/lib/mapValuesLimit.js, https://github.com/caolan/async/blob/v2.6.4/CHANGELOG.md#v264, https://security.netapp.com/advisory/ntap-20240621-0006/, https://github.com/caolan/async/commit/e1ecdbf79264f9ab488c7799f4c76996d5dca66d, https://github.com/caolan/async/compare/v2.6.3...v2.6.4, https://github.com/caolan/async/pull/1828, https://jsfiddle.net/oz5twjd9/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -c6bdaca4f9175c14fc655d3783c6af6a883e6514

    Affected versions

    v2.6.3
    v2.6.2
    v2.6.1
    v2.6.0

    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-2021-43138 | CVE-DB