Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability_CVE-2026-44211

{
    "lastseen": "",
    "description": "Cline is an autonomous coding agent as an SDK, IDE extension, or CLI assistant. In versions 2.13.0 and prior, there is a cross-origin WebSocket hijack vulnerability in Cline Kanban servers. At time of publication, there are no publicly available patches.",
    "published": "2026-06-01T16:01:55.587Z",
    "modified": "2026-06-01T16:01:55.587Z",
    "type": "cve",
    "title": "Cline Kanban Server has a Cross-Origin WebSocket Hijacking Vulnerability",
    "source": "GitHub_M",
    "references": "https://github.com/cline/cline/security/advisories/GHSA-5c57-rqjx-35g2",
    "id": "CVE-2026-44211",
    "bulletinFamily": "",
    "cwe": [
        "CWE-306",
        "CWE-1385"
    ],
    "cvelist": null,
    "sourceData": "cline cline <= 2.13.0",
    "sourceHref": "",
    "cvss": {
        "score": 9.6,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
        "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": "cline",
    "version": "<= 2.13.0",
    "vendor": "cline",
    "ai_description": "Cross-Origin WebSocket Hijacking Vulnerability in Cline Kanban Server",
    "ai_severity": "Critical",
    "ai_vendor": "Cline",
    "ai_product": "Cline Kanban Server",
    "ai_version": "2.13.0 and prior",
    "ai_score": 9.6
}