CVE-2021-39873

    Dashboard / Vulnerabilities / CVE-2021-39873

    CVE-2021-39873

    Published: 4 Oct 2021Last Modified: 27 Aug 2026

    Summary:

    Details: In all versions of GitLab CE/EE, there exists a content spoofing vulnerability which may be leveraged by attackers to trick users into visiting a malicious website by spoofing the content in an error response.

    References: https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39873.json, https://gitlab.com/gitlab-org/gitlab/-/issues/27241, https://hackerone.com/reports/504961

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -9cd657e5179e339171d27e4573b8f5711db1d824

    Affected versions

    v14.1.6-ee
    v14.1.5-ee
    v14.1.3-ee
    v14.1.1-ee
    v14.1.0-ee
    v14.1.0-rc43-ee
    v14.1.0-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-2021-39873 | CVE-DB