CVE-2021-39871

    Dashboard / Vulnerabilities / CVE-2021-39871

    CVE-2021-39871

    Published: 4 Oct 2021Last Modified: 27 Aug 2026

    Summary:

    Details: In all versions of GitLab CE/EE since version 13.0, an instance that has the setting to disable Bitbucket Server import enabled is bypassed by an attacker making a crafted API call.

    References: https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39871.json, https://gitlab.com/gitlab-org/gitlab/-/issues/340782, https://hackerone.com/reports/630263

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- ef3e35341f6a930af2d57979999b71457b9f72a4
    Fixed -9cd657e5179e339171d27e4573b8f5711db1d824

    Affected versions

    v14.2.4-ee
    v14.2.3-ee
    v14.2.1-ee
    v14.2.0-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-2021-39871 | CVE-DB