CVE-2021-39880

    Dashboard / Vulnerabilities / CVE-2021-39880

    CVE-2021-39880

    Published: 5 Oct 2021Last Modified: 27 Aug 2026

    Summary:

    Details: A Denial Of Service vulnerability in the apollo_upload_server Ruby gem in GitLab CE/EE all versions starting from 11.9 before 14.0.9, all versions starting from 14.1 before 14.1.4, and all versions starting from 14.2 before 14.2.2 allows an attacker to deny access to all users via specially crafted requests to the apollo_upload_server middleware.

    References: https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39880.json, https://gitlab.com/gitlab-org/gitlab/-/issues/330561, https://hackerone.com/reports/1181284

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -e8824bdbcb70ab6210d3de565d52662d95c96978

    Affected versions

    v14.0.5-ee
    v14.0.8-ee
    v14.0.6-ee
    v14.0.3-ee
    v14.0.1-ee
    v14.0.0-ee
    v14.0.0-rc44-ee
    v14.0.0-rc43-ee
    v14.0.0-rc42-ee

    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-2021-39880 | CVE-DB