UBUNTU-CVE-2026-120684

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    UBUNTU-CVE-2026-120684

    Published: 3 Nov 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-120684

    Summary:

    Details: A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.

    References: https://ubuntu.com/security/CVE-2026-120684, https://www.cve.org/CVERecord?id=CVE-2026-120684, https://jira.mongodb.org/browse/CDRIVER-6508

    Affected packages

    Package

    Name: mongo-c-driver

    Purl: pkg:deb/ubuntu/mongo-c-driver?arch=source&distro=esm-apps%2Ffocal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.15.0-1
    1.15.1-1
    1.15.2-1

    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
    UBUNTU-CVE-2026-120684 | CVE-DB