Gradio < 6.15.0 Cookie Injection via Shared Proxy Client_CVE-2026-48545

{
    "lastseen": "",
    "description": "Gradio before version 6.15.0 contains a cookie injection vulnerability that allows remote attackers to perform cross-Space session fixation by exploiting a shared module-level HTTP client used across all users in the reverse proxy endpoint. Attackers controlling any HF Space can return a parent-domain cookie that the shared client stores and automatically replays into all subsequent proxy requests to other legitimate Spaces, affecting all users of the same Gradio deployment.",
    "published": "2026-05-27T14:59:33.071Z",
    "modified": "2026-05-27T15:35:52.619Z",
    "type": "cve",
    "title": "Gradio < 6.15.0 Cookie Injection via Shared Proxy Client",
    "source": "VulnCheck",
    "references": "https://github.com/gradio-app/gradio/releases/tag/gradio%406.15.0\nhttps://github.com/gradio-app/gradio/issues/13369\nhttps://github.com/gradio-app/gradio/pull/13384\nhttps://github.com/gradio-app/gradio/commit/feb7237d01f359d2ad4ee42d00344e61692b3b39\nhttps://www.vulncheck.com/advisories/gradio-cookie-injection-via-shared-pro",
    "id": "CVE-2026-48545",
    "bulletinFamily": "",
    "cwe": [
        "CWE-384"
    ],
    "cvelist": null,
    "sourceData": "gradio-app gradio 0",
    "sourceHref": "",
    "cvss": {
        "score": 7.6,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "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": "gradio",
    "version": "0",
    "vendor": "gradio-app",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}