Authorization Bypass Through User-Controlled Key in GitLab_CVE-2026-6063

4.3 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user with developer-role permissions to remove code owner approval rules from merge requests due to improper access control.

Basic Information

ID CVE-2026-6063

Source GitLab

Published May 14, 2026 at 05:34

Affected Product

Vendor GitLab

Product GitLab

Version 11.10

Affected Versions GitLab GitLab 11.10
GitLab GitLab 18.10
GitLab GitLab 18.11

CWE Classification

CWE-639

References

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    "lastseen": "",
    "description": "GitLab has remediated an issue in GitLab EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user with developer-role permissions to remove code owner approval rules from merge requests due to improper access control.",
    "published": "2026-05-14T05:34:12.358Z",
    "modified": "2026-05-14T05:34:12.358Z",
    "type": "cve",
    "title": "Authorization Bypass Through User-Controlled Key in GitLab",
    "source": "GitLab",
    "references": "https://gitlab.com/gitlab-org/gitlab/-/work_items/596332\nhttps://hackerone.com/reports/3649087\nhttps://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/",
    "id": "CVE-2026-6063",
    "bulletinFamily": "",
    "cwe": [
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "GitLab GitLab 11.10\nGitLab GitLab 18.10\nGitLab GitLab 18.11",
    "sourceHref": "",
    "cvss": {
        "score": 4.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "GitLab",
    "version": "11.10",
    "vendor": "GitLab",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}