CVE-2019-11636

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    CVE-2019-11636

    Published: 1 May 2019Last Modified: 7 Aug 2026

    Summary:

    Details: Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and "prevent any real transaction from occurring" via a "Sapling Wood-Chipper" attack.

    References: https://saplingwoodchipper.github.io, https://github.com/zcash/zcash/issues/3955, https://twitter.com/dukeleto/status/1120467430118232066

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- d960b75de02097c806afb1a2d4982a5f85caf4e1
    Fixed -None

    Affected versions

    2.0.5-rc1

    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