BIT-mongodb-2021-20330

    Dashboard / Vulnerabilities / BIT-mongodb-2021-20330

    BIT-mongodb-2021-20330

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Specific replication command with malformed oplog entries can crash secondaries

    Details: An attacker with basic CRUD permissions on a replicated collection can run the applyOps command with specially malformed oplog entries, resulting in a potential denial of service on secondaries. This issue affects MongoDB Server v4.0 versions prior to 4.0.27; MongoDB Server v4.2 versions prior to 4.2.16; MongoDB Server v4.4 versions prior to 4.4.9.

    References: https://jira.mongodb.org/browse/SERVER-36263, https://nvd.nist.gov/vuln/detail/CVE-2021-20330

    Affected packages

    Package

    Name: mongodb

    Purl: pkg:bitnami/mongodb

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 4.0.0
    Fixed -4.0.25

    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-2021-20330 | CVE-DB