Incorrect Authorization in GitLab_CVE-2026-9807

4.3 / 10

MEDIUM

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

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.

Basic Information

ID CVE-2026-9807

Source GitLab

Published May 28, 2026 at 07:34

Affected Product

Vendor GitLab

Product GitLab

Version 18.9

Affected Versions GitLab GitLab 18.9
GitLab GitLab 18.11
GitLab GitLab 19.0

CWE Classification

CWE-863

References

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    "lastseen": "",
    "description": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.",
    "published": "2026-05-28T07:34:37.630Z",
    "modified": "2026-05-28T07:34:37.630Z",
    "type": "cve",
    "title": "Incorrect Authorization in GitLab",
    "source": "GitLab",
    "references": "https://hackerone.com/reports/3554993\nhttps://gitlab.com/gitlab-org/gitlab/-/work_items/590694\nhttps://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/",
    "id": "CVE-2026-9807",
    "bulletinFamily": "",
    "cwe": [
        "CWE-863"
    ],
    "cvelist": null,
    "sourceData": "GitLab GitLab 18.9\nGitLab GitLab 18.11\nGitLab GitLab 19.0",
    "sourceHref": "",
    "cvss": {
        "score": 4.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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": "18.9",
    "vendor": "GitLab",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}