{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-84284",
        "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "state": "PUBLISHED",
        "assignerShortName": "GitLab",
        "dateReserved": "2026-09-01T15:15:40.255Z",
        "datePublished": "2026-10-13T01:06:56.170Z",
        "dateUpdated": "2026-10-13T01:06:56.170Z"
    },
    "containers": {
        "cna": {
            "title": "Incorrect Authorization in GitLab",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.11 before 19.2.8, all 19.3 versions, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an unauthenticated user to read work item contents from private groups and projects due to incorrect authorization checks."
                }
            ],
            "affected": [
                {
                    "vendor": "GitLab",
                    "product": "GitLab",
                    "repo": "https://gitlab.com/gitlab-org/gitlab",
                    "cpes": [
                        "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
                    ],
                    "versions": [
                        {
                            "version": "17.11",
                            "status": "affected",
                            "lessThan": "19.2.8",
                            "versionType": "semver"
                        },
                        {
                            "version": "19.3",
                            "status": "affected",
                            "lessThan": "19.4.2",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "cweId": "CWE-863",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/627167"
                },
                {
                    "url": "https://hackerone.com/reports/3551698",
                    "name": "HackerOne Bug Bounty Report #3551698",
                    "tags": [
                        "technical-description",
                        "exploit",
                        "permissions-required"
                    ]
                },
                {
                    "url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "NONE",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Upgrade to versions 19.2.8, 19.4.2 or above."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Thanks [modhanami](https://hackerone.com/modhanami) for reporting this vulnerability through our HackerOne bug bounty program",
                    "type": "finder"
                }
            ],
            "providerMetadata": {
                "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
                "shortName": "GitLab",
                "dateUpdated": "2026-10-13T01:06:56.170Z"
            }
        }
    }
}