DevSpace UI Server WebSocket CheckOrigin does not validate source_CVE-2026-42283

{
    "lastseen": "",
    "description": "DevSpace is a client-only developer tool for cloud-native development with Kubernetes. Prior to 6.3.21, DevSpace's UI server WebSocket accepts connections from all origins by default, and therefore several endpoints are exposed via this WebSocket. When a developer runs the DevSpace UI and at the same time uses a browser to access the internet, a malicious website they visit can use their browser to establish a cross-origin WebSocket connection to ws://127.0.0.1:8090. This vulnerability is fixed in 6.3.21.",
    "published": "2026-05-14T15:44:22.499Z",
    "modified": "2026-05-14T15:44:22.499Z",
    "type": "cve",
    "title": "DevSpace UI Server WebSocket CheckOrigin does not validate source",
    "source": "GitHub_M",
    "references": "https://github.com/devspace-sh/devspace/security/advisories/GHSA-hqwm-7x7x-8379",
    "id": "CVE-2026-42283",
    "bulletinFamily": "",
    "cwe": [
        "CWE-306",
        "CWE-200"
    ],
    "cvelist": null,
    "sourceData": "devspace-sh devspace < 6.3.21",
    "sourceHref": "",
    "cvss": {
        "score": 7.7,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:H/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": "devspace",
    "version": "< 6.3.21",
    "vendor": "devspace-sh",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}