GHSA-j4f2-536g-r55m

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    GHSA-j4f2-536g-r55m

    Published: 9 Feb 2022Last Modified: 29 May 2025

    Summary: Resource exhaustion in engine.io

    Details: Engine.IO before 4.0.0 and 3.6.0 allows attackers to cause a denial of service (resource consumption) via a POST request to the long polling transport.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-36048, https://github.com/socketio/engine.io/commit/58e274c437e9cbcf69fd913c813aad8fbd253703, https://github.com/socketio/engine.io/commit/734f9d1268840722c41219e69eb58318e0b2ac6b, https://blog.caller.xyz/socketio-engineio-dos, https://github.com/bcaller/kill-engine-io, https://github.com/socketio/engine.io

    Affected packages

    Package

    Name: engine.io

    Purl: pkg:npm/engine.io

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -3.6.0

    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-j4f2-536g-r55m | CVE-DB