CVE-2026-108856lowCWE-639

CVE-2026-108856: low-severity vulnerability in UnicomAI Wanwu

UnicomAI Wanwu through 0.6.5 Authorization Bypass via /v1/appspace/app/key AppKey Minting

Published

5Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 2.3
exploitation probability
—
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
UnicomAI · Wanwu
Related CVEs — UnicomAI Wanwu

In the same product, most dangerous first.

CVE-2026-108855MEDIUMUnicomAI Wanwu through 0.6.5 Missing Authorization via DELETE /v1/appspace/app/publishEPSS —CVE-2026-108854MEDIUMWanwu before 0.6.3 IDOR AppKey Deletion via DELETE /v1/appspace/app/keyEPSS —CVE-2026-108853HIGHUnicomAI Wanwu before 0.6.3 IDOR via DELETE /v1/appspace/appEPSS —
References
https://github.com/UnicomAI/wanwuhttps://github.com/UnicomAI/wanwu/blob/v0.6.5/internal/app-service/client/orm/app_key.go#L37-L49https://github.com/UnicomAI/wanwu/blob/v0.6.5/internal/bff-service/server/http/middleware/auth_openapi.go#L46-L70https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/unicomai-wanwu-mcp-key-arbitrary-resourcehttps://www.vulncheck.com/advisories/unicomai-wanwu-through-0.6.5-authorization-bypass-via-v1-appspace-app-key-appkey-minting