CVE-2021-43667

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    CVE-2021-43667

    Published: 18 Nov 2021Last Modified: 7 Aug 2026

    Summary:

    Details: A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.1.0. This bug can be leveraged by constructing a message whose payload is nil and sending this message with the method 'forwardToLeader'. This bug has been admitted and fixed by the developers of Fabric. If leveraged, any leader node will crash.

    References: https://github.com/hyperledger/fabric/pull/2844, https://jira.hyperledger.org/browse/FAB-18529

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- d700b43476e803c864c48021e63a78543b60e17e
    Fixed -None

    Affected versions

    1.4.0

    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-2021-43667 | CVE-DB