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CVE-2026-119703— xiaozhi-esp32-server through 0.9.8 Authentication Bypass via Spoofed Device-ID Header

Quick assessment

Affected
xinnan-tech xiaozhi-esp32-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

xiaozhi-esp32-server 0.9.8 及更早版本中存在一个身份验证绕过漏洞。该漏洞位于 函数中，允许远程未认证攻击者通过伪造 请求头来绕过 Bearer HMAC 令牌验证。攻击者若提供一个形似白名单 MAC 地址的设备标识符，即可建立已认证的 WebSocket 会话，进而发送语音助手指令、交换音频数据，并读取该设备的对话上下文。

CVSS 4.8 · Medium
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I. Basic Information for CVE-2026-119703

Vulnerability Information
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Vulnerability Title
xiaozhi-esp32-server through 0.9.8 Authentication Bypass via Spoofed Device-ID Header
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
xinnan-tech xiaozhi-esp32-server 0 ~ 0.9.8 -

II. Public POCs for CVE-2026-119703

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III. Intelligence Information for CVE-2026-119703

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Other References for CVE-2026-119703 (5)

IV. Related Vulnerabilities

Same product: xiaozhi-esp32-server
Same vendor: xinnan-tech
Same weakness: CWE-290