{"id":"CVE-2026-108856","revision":"b035cecc578e4a4fbd681f09653c9708","records":[{"revision":"b035cecc578e4a4fbd681f09653c9708","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-108856","aliases":[],"title":"UnicomAI Wanwu through 0.6.5 Authorization Bypass via /v1/appspace/app/key AppKey Minting","description":"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.","state":0,"publishedAt":"2026-10-11T13:26:04.558+00:00","modifiedAt":"2026-10-13T13:41:14.911+00:00","affected":[{"ecosystem":"Vendor product","name":"Wanwu","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"UnicomAI\",\n                    \"product\": \"Wanwu\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"0.6.5\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/UnicomAI/wanwu\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":2.3,"severity":"LOW"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","score":4.2,"severity":"MEDIUM"}],"references":["https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/unicomai-wanwu-mcp-key-arbitrary-resource","https://github.com/UnicomAI/wanwu/blob/v0.6.5/internal/app-service/client/orm/app_key.go#L37-L49","https://github.com/UnicomAI/wanwu/blob/v0.6.5/internal/bff-service/server/http/middleware/auth_openapi.go#L46-L70","https://github.com/UnicomAI/wanwu","https://www.vulncheck.com/advisories/unicomai-wanwu-through-0.6.5-authorization-bypass-via-v1-appspace-app-key-appkey-minting"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-108856","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-108856","identifiers":["CVE-2026-108856"]},"retained":false,"historicalAffected":[]}],"coverage":[]}