UBUNTU-CVE-2026-120678

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    UBUNTU-CVE-2026-120678

    Published: 3 Nov 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-120678

    Summary:

    Details: A memory management flaw in the MongoDB C Driver's handling of compressed responses may cause the client library to hold on to memory that is never released. An unauthenticated party that controls the database endpoint a client application connects to may cause repeated, unbounded memory growth in that application, which may result in the application becoming unavailable. No credentials, transport security settings, or user interaction are required.

    References: https://ubuntu.com/security/CVE-2026-120678, https://www.cve.org/CVERecord?id=CVE-2026-120678, https://jira.mongodb.org/browse/CDRIVER-6521

    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-2026-120678 | CVE-DB