BIT-mongodb-2021-32040

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    BIT-mongodb-2021-32040

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Large aggregation pipelines with a specific stage can crash mongod under default configuration

    Details: It may be possible to have an extremely long aggregation pipeline in conjunction with a specific stage/operator and cause a stack overflow due to the size of the stack frames used by that stage. If an attacker could cause such an aggregation to occur, they could maliciously crash MongoDB in a DoS attack. This vulnerability affects MongoDB Server v4.4 versions prior to and including 4.4.28, MongoDB Server v5.0 versions prior to 5.0.4 and MongoDB Server v4.2 versions prior to 4.2.16. Workaround: >= v4.2.16 users and all v4.4 users can add the --setParameter internalPipelineLengthLimit=50 instead of the default 1000 to mongod at startup to prevent a crash.

    References: https://jira.mongodb.org/browse/SERVER-58203, https://jira.mongodb.org/browse/SERVER-59299, https://jira.mongodb.org/browse/SERVER-60218, https://security.netapp.com/advisory/ntap-20220609-0005/, https://nvd.nist.gov/vuln/detail/CVE-2021-32040

    Affected packages

    Package

    Name: mongodb

    Purl: pkg:bitnami/mongodb

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 4.2.0
    Fixed -4.2.16

    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
    BIT-mongodb-2021-32040 | CVE-DB