---
id: CVE-2026-111623
title: >-
  Xiaozhi-esp32-server-java through 6.1.0 Authentication Bypass via OTA Endpoint
  Token Issuance
summary: >-
  Xiaozhi-esp32-server-java through 6.1.0 contains an authentication bypass
  vulnerability that allows unauthenticated attackers to obtain valid device
  WebSocket tokens by requesting /api/device/ota with any MAC address. Attackers
  can open …
severity: medium
cvss: 5.6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-290
vendor: joey-zhou
product: xiaozhi-esp32-server-java
affected:
  - xiaozhi-esp32-server-java <= 6.1.0
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T17:38:59.425Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111623'
references:
  - url: >-
      https://hackmd.io/@hieuPenguinnn/xiaozhi-esp32-server-java-ota-device-token-issuance
  - url: >-
      https://github.com/joey-zhou/xiaozhi-esp32-server-java/blob/v6.1.0/xiaozhi-server/src/main/java/com/xiaozhi/device/DeviceAppService.java#L298-L346
  - url: >-
      https://github.com/joey-zhou/xiaozhi-esp32-server-java/blob/v6.1.0/xiaozhi-server/src/main/java/com/xiaozhi/device/DeviceController.java#L142-L153
  - url: >-
      https://github.com/joey-zhou/xiaozhi-esp32-server-java/blob/v6.1.0/xiaozhi-common/src/main/java/com/xiaozhi/communication/auth/DeviceAuthService.java#L76-L81
  - url: 'https://github.com/joey-zhou/xiaozhi-esp32-server-java'
  - url: >-
      https://www.vulncheck.com/advisories/xiaozhi-esp32-server-java-through-6.1.0-authentication-bypass-via-ota-endpoint-token-issuance
    label: >-
      VulnCheck Advisory: Xiaozhi-esp32-server-java through 6.1.0 Authentication
      Bypass via OTA Endpoint Token Issuance
tags:
  - cve.org
ingestedAt: '2026-10-16T18:43:08.690Z'
---

## Overview

Xiaozhi-esp32-server-java through 6.1.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain valid device WebSocket tokens by requesting /api/device/ota with any MAC address. Attackers can open a victim device's WebSocket channel to read private role system prompts, write conversation history, consume LLM/STT/TTS credentials, and overwrite device metadata.

## Affected

- `xiaozhi-esp32-server-java <= 6.1.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.