CVE-2026-119703

MEDIUM 4.8

xiaozhi-esp32-server through 0.9.8 Authentication Bypass via Spoofed Device-ID Header

CVSS Score

4.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-290
Vendor	xinnan-tech
Product	xiaozhi-esp32-server
Published	Oct 30, 2026
Last Updated	Oct 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

xinnan-tech / xiaozhi-esp32-server

0 ≤ 0.9.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/xinnan-tech/xiaozhi-esp32-server/issues/3448 github.com: https://github.com/xinnan-tech/xiaozhi-esp32-server github.com: https://github.com/xinnan-tech/xiaozhi-esp32-server/blob/v0.9.8/main/xiaozhi-server/core/websocket_server.py#L211-L232 github.com: https://github.com/xinnan-tech/xiaozhi-esp32-server/pull/3457 vulncheck.com: https://www.vulncheck.com/advisories/xiaozhi-esp32-server-through-0.9.8-authentication-bypass-via-spoofed-device-id-header

Credits

George Chen