---
id: CVE-2026-108856
title: >-
  UnicomAI Wanwu through 0.6.5 contains an authorization bypass vulnerability
  that allows authenticated users to mint AppKeys bound to other users' MCP
  servers via POST /v1/appspace/app/key
summary: >-
  UnicomAI Wanwu through 0.6.5 contains an authorization bypass vulnerability
  that allows authenticated users to mint AppKeys bound to other users' MCP
  servers via POST /v1/appspace/app/key. Attackers supplying a victim's MCP
  server UUID w…
severity: medium
cvss: 4.2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-639
published: '2026-10-11'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T14:17:05.370'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108856'
references:
  - url: 'https://github.com/UnicomAI/wanwu'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/UnicomAI/wanwu/blob/v0.6.5/internal/app-service/client/orm/app_key.go#L37-L49
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/UnicomAI/wanwu/blob/v0.6.5/internal/bff-service/server/http/middleware/auth_openapi.go#L46-L70
    label: disclosure@vulncheck.com
  - url: >-
      https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/unicomai-wanwu-mcp-key-arbitrary-resource
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/unicomai-wanwu-through-0.6.5-authorization-bypass-via-v1-appspace-app-key-appkey-minting
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-12T14:50:34.052Z'
---

## Overview

UnicomAI Wanwu through 0.6.5 contains an authorization bypass vulnerability that allows authenticated users to mint AppKeys bound to other users' MCP servers via POST /v1/appspace/app/key. Attackers supplying a victim's MCP server UUID with appType mcpserver can open MCP sessions and invoke the server's tools using the victim's upstream authentication.

## Remediation

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