Open WebUI: Redirect-Bypass SSRF in OAuth `_process_picture_url`_CVE-2026-54008

{
    "lastseen": "",
    "description": "Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, backend/open_webui/utils/oauth.py::_process_picture_url calls validate_url(picture_url) on the initial URL only, then invokes aiohttp.ClientSession.get(picture_url, ...) without allow_redirects=False. aiohttp's default is allow_redirects=True, max_redirects=10; the function does not pass the project's AIOHTTP_CLIENT_ALLOW_REDIRECTS env constant either. An attacker with a valid OAuth IdP identity can therefore submit a public URL that 302-redirects to an internal address and read the internal response body via the attacker's own profile_image_url field. This vulnerability is fixed in 0.9.6.",
    "published": "2026-06-23T16:50:06.798Z",
    "modified": "2026-06-23T16:50:06.798Z",
    "type": "cve",
    "title": "Open WebUI: Redirect-Bypass SSRF in OAuth `_process_picture_url`",
    "source": "GitHub_M",
    "references": "https://github.com/open-webui/open-webui/security/advisories/GHSA-226f-f24g-524w",
    "id": "CVE-2026-54008",
    "bulletinFamily": "",
    "cwe": [
        "CWE-918"
    ],
    "cvelist": null,
    "sourceData": "open-webui open-webui < 0.9.6",
    "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": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "open-webui",
    "version": "< 0.9.6",
    "vendor": "open-webui",
    "ai_description": "Redirect-Bypass SSRF in OAuth `_process_picture_url` allows attackers to submit a public URL that 302-redirects to an internal address and read the internal response body via the attacker's own profile_image_url field.",
    "ai_severity": "High",
    "ai_vendor": "Open WebUI",
    "ai_product": "Open WebUI",
    "ai_version": "< 0.9.6",
    "ai_score": 8.5
}