Authorization Bypass Through User-Controlled Key in GitLab_CVE-2026-2104

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 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to access confidential issues assigned to other users via CSV export due to insufficient authorization checks.

Basic Information

ID CVE-2026-2104

Source GitLab

Published Apr 8, 2026 at 22:25

Modified Apr 9, 2026 at 15:43

Affected Product

Vendor GitLab

Product GitLab

Version 18.2

Affected Versions GitLab GitLab 18.2
GitLab GitLab 18.9
GitLab GitLab 18.10

CWE Classification

CWE-639

References

{
    "lastseen": "",
    "description": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to access confidential issues assigned to other users via CSV export due to insufficient authorization checks.",
    "published": "2026-04-08T22:25:47.858Z",
    "modified": "2026-04-09T15:43:25.441Z",
    "type": "cve",
    "title": "Authorization Bypass Through User-Controlled Key in GitLab",
    "source": "GitLab",
    "references": "https://hackerone.com/reports/3541476\nhttps://gitlab.com/gitlab-org/gitlab/-/work_items/589021\nhttps://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/",
    "id": "CVE-2026-2104",
    "bulletinFamily": "",
    "cwe": [
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "GitLab GitLab 18.2\nGitLab GitLab 18.9\nGitLab GitLab 18.10",
    "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": "18.2",
    "vendor": "GitLab",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}