{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-5173",
        "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "state": "PUBLISHED",
        "assignerShortName": "GitLab",
        "dateReserved": "2026-03-30T16:33:59.755Z",
        "datePublished": "2026-04-08T22:25:12.946Z",
        "dateUpdated": "2026-04-08T22:25:12.946Z"
    },
    "containers": {
        "cna": {
            "title": "Exposed Dangerous Method or Function in GitLab",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9.6 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 invoke unintended server-side methods through websocket connections due to improper access control."
                }
            ],
            "affected": [
                {
                    "vendor": "GitLab",
                    "product": "GitLab",
                    "repo": "git://git@gitlab.com:gitlab-org/gitlab.git",
                    "cpes": [
                        "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
                    ],
                    "versions": [
                        {
                            "version": "16.9.6",
                            "status": "affected",
                            "lessThan": "18.8.9",
                            "versionType": "semver"
                        },
                        {
                            "version": "18.9",
                            "status": "affected",
                            "lessThan": "18.9.5",
                            "versionType": "semver"
                        },
                        {
                            "version": "18.10",
                            "status": "affected",
                            "lessThan": "18.10.3",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-749: Exposed Dangerous Method or Function",
                            "cweId": "CWE-749",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/588959"
                },
                {
                    "url": "https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "LOW",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.5,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Upgrade to versions 18.8.9, 18.9.5, 18.10.3 or above."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "This vulnerability has been discovered internally by GitLab team member Simon Tomlinson",
                    "type": "finder"
                }
            ],
            "providerMetadata": {
                "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
                "shortName": "GitLab",
                "dateUpdated": "2026-04-08T22:25:12.946Z"
            }
        }
    }
}