CVE-2022-2421

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    CVE-2022-2421

    Published: 25 Oct 2022Last Modified: 28 Oct 2026

    Summary: Socket.io - Improper type validation in attachment parsing

    Details: Due to improper type validation in attachment parsing the Socket.io js library, it is possible to overwrite the _placeholder object which allows an attacker to place references to functions at arbitrary places in the resulting query object.

    References: https://csirt.divd.nl/CVE-2022-2421, https://csirt.divd.nl/DIVD-2022-00045, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2421.json, https://nvd.nist.gov/vuln/detail/CVE-2022-2421

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -cd11e38e1a3e2146617bc586f86512605607b212

    Affected versions

    3.3.2
    3.3.1
    3.3.0

    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-2022-2421 | CVE-DB