CVE-2026-108856
MediumCVSS 4.2Summary
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.
Risk Assessment
The risk is unauthorized access to other users' MCP servers, potentially leading to data integrity and confidentiality breaches.
Recommendation
It is recommended to update Wanwu to a version that verifies the owner of the MCP server when creating keys and monitor API activity.
Other vulnerabilities in UnicomAI Wanwu
See all- CVE-2026-108855Medium
UnicomAI Wanwu through 0.6.5 contains a missing authorization vulnerability that allows any authenticated enabled user to revoke other users' AppKeys for arbitrary apps via the unpublish endpoint. Attackers can supply a target appId and appType from the exploration marketplace to delete other users' api_key rows across organizations, cutting off MCP and OpenAPI client access.
- CVE-2026-108854Medium
Wanwu before 0.6.3 contains an insecure direct object reference vulnerability that allows any authenticated enabled user to delete other users' legacy AppKeys by supplying a numeric apiId. Attackers can iterate sequential key IDs against DELETE /v1/appspace/app/key to revoke AppKeys across organizations, breaking MCP and OpenAPI clients until owners issue new keys.
- CVE-2026-108853High
UnicomAI Wanwu before 0.6.3 contains an insecure direct object reference vulnerability that allows authenticated low-privileged users to delete other tenants' agent or RAG applications by supplying their appId. Attackers can send requests to DELETE /v1/appspace/app with guessed sequential assistant IDs to permanently delete victims' applications, workflows, conversations, and associated data.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS