Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| esphome / esphome | affected = 2025.8.0 |
CWE
CWE-303
References
- https://github.com/esphome/esphome/security/advisories/GHSA-mxh2-ccgj-8635
- https://github.com/esphome/esphome/commit/2aceb56606ec8afec5f49c92e140c8050a6ccbe5
ADP enrichment
No English description supplied.