CVE-2025-57808

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Source

https://cve.org/CVERecord?id=CVE-2025-57808

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-57808.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-57808

Aliases

Published

2025-09-02T00:26:09Z

Modified

2026-08-12T03:51:21Z

Severity

8.1 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

ESP-IDF web_server basic auth bypass using empty or incomplete Authorization header

Details

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.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-303"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/57xxx/CVE-2025-57808.json"
}

References

Affected packages

Git / github.com/esphome/esphome

Affected ranges

Type

GIT

Repo

https://github.com/esphome/esphome

Events

Introduced

2adb99324227f5057a5ce2fbc4bbcbf3d6d242cd

Last Affected

2adb99324227f5057a5ce2fbc4bbcbf3d6d242cd

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "= 2025.8.0"
        },
        {
            "last_affected": "= 2025.8.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

2025.*

2025.8.0

= 2025.*

= 2025.8.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-57808.json"