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    CVE-2021-4191

    An issue has been discovered in GitLab CE/EE affecting versions 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2. Private GitLab instances with restricted sign-ups may be vulnerable to user enumeration to unauthenticated users through the GraphQL API.

    Published:Mar 28, 2022
    Last Modified:Nov 21, 2024
    EPS:Mar 28, 2022
    EPSS Score:0.93345
    CVSS Score:5.3

    Affected Products

    Vendor
    Gitlab
    Product
    Gitlab

    Exploits

    https://github.com/Adelittle/CVE-2021-4191_Exploitshttps://github.com/K3ysTr0K3R/CVE-2021-4191-EXPLOIT

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-7487 (CVSS 3.5) — GitLab has remediated an issue in GitLab EE affecting all versions from 13.1 before 19.1.7, 19.2 before 19.2.5…
    CVE-2026-15387 (CVSS 4.3) — GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.7, 19.2 before 19.2.5…
    CVE-2026-18252 (CVSS 7.3) — GitLab has remediated an issue in GitLab EE affecting all versions from 18.9 before 19.1.7, 19.2 before 19.2.5…
    CVE-2026-77801 (CVSS 6.5) — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.8 before 19.1.7, 19.2 before 19.…
    CVE-2026-10053 (CVSS 8.5) — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.8 before 19.0.6, 19.1 before 19.…
    CVE-2026-19650 (CVSS 7.1) — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 1…
    CVE-2026-19478 (CVSS 9.4) — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 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