ESP-IDF web_server basic auth bypass using empty or incomplete Authorization header_CVE-2025-57808

{
    "lastseen": "",
    "description": "ESPHome is a system to control microcontrollers remotely through Home Automation systems. In version 2025.8.0 in the ESP-IDF platform, ESPHome's web_server authentication check can pass incorrectly when the client-supplied base64-encoded Authorization value is empty or is a substring of the correct value. This allows access to web_server functionality (including OTA, if enabled) without knowing any information about the correct username or password. This issue has been patched in version 2025.8.1.",
    "published": "2025-09-02T00:26:09.017Z",
    "modified": "2025-09-02T00:26:09.017Z",
    "type": "cve",
    "title": "ESP-IDF web_server basic auth bypass using empty or incomplete Authorization header",
    "source": "GitHub_M",
    "references": "https://github.com/esphome/esphome/security/advisories/GHSA-mxh2-ccgj-8635\nhttps://github.com/esphome/esphome/commit/2aceb56606ec8afec5f49c92e140c8050a6ccbe5",
    "id": "CVE-2025-57808",
    "bulletinFamily": "",
    "cwe": [
        "CWE-303"
    ],
    "cvelist": null,
    "sourceData": "esphome esphome = 2025.8.0",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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": "esphome",
    "version": "= 2025.8.0",
    "vendor": "esphome",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}