Exposed Dangerous Method or Function in GitLab_CVE-2026-5173

8.5 / 10

HIGH

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

Description

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.

Basic Information

ID CVE-2026-5173

Source GitLab

Published Apr 8, 2026 at 22:25

Modified Apr 9, 2026 at 13:16

Affected Product

Vendor GitLab

Product GitLab

Version 16.9.6

Affected Versions GitLab GitLab 16.9.6
GitLab GitLab 18.9
GitLab GitLab 18.10

CWE Classification

CWE-749

References

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    "lastseen": "",
    "description": "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.",
    "published": "2026-04-08T22:25:12.946Z",
    "modified": "2026-04-09T13:16:53.628Z",
    "type": "cve",
    "title": "Exposed Dangerous Method or Function in GitLab",
    "source": "GitLab",
    "references": "https://gitlab.com/gitlab-org/gitlab/-/work_items/588959\nhttps://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/",
    "id": "CVE-2026-5173",
    "bulletinFamily": "",
    "cwe": [
        "CWE-749"
    ],
    "cvelist": null,
    "sourceData": "GitLab GitLab 16.9.6\nGitLab GitLab 18.9\nGitLab GitLab 18.10",
    "sourceHref": "",
    "cvss": {
        "score": 8.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/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": "",
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            "privilegesRequired": "",
            "userInteraction": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "GitLab",
    "version": "16.9.6",
    "vendor": "GitLab",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
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    "ai_version": "",
    "ai_score": 0
}