CVE-2026-119703
xiaozhi-esp32-server through 0.9.8 Authentication Bypass via Spoofed Device-ID Header
- State
- Published
- Severity
- 6.3 Medium
- Published
- Oct 30, 2026
- Updated
- Oct 30, 2026
- Reserved
- Oct 30, 2026
Description
xiaozhi-esp32-server through 0.9.8 contains an authentication bypass vulnerability in WebSocketServer._handle_auth that allows remote unauthenticated attackers to skip Bearer HMAC token verification by spoofing the Device-ID header. Attackers supplying an allowlisted MAC-address-shaped device identifier can open an authenticated WebSocket session, issue voice-assistant commands, exchange audio, and read that device's conversation context.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.3 Medium | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.8 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-290 Authentication Bypass by Spoofing
Affected Products
| Product | Versions |
|---|---|
xiaozhi-esp32-serverxinnan-tech |
|
References
- GitHub Issue #3448issue-tracking
- https://github.com/xinnan-tech/xiaozhi-esp32-serverproduct
- https://github.com/xinnan-tech/xiaozhi-esp32-server/blob/v0.9.8/main/xiaozhi-server/core/websocket_server.py#L211-L232technical-description
- https://github.com/xinnan-tech/xiaozhi-esp32-server/pull/3457patchissue-tracking
- VulnCheck Advisory: xiaozhi-esp32-server through 0.9.8 Authentication Bypass via Spoofed Device-ID Headerthird-party-advisory
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