{"id":"CVE-2026-108856","summary":"UnicomAI Wanwu through 0.6.5 Authorization Bypass via /v1/appspace/app/key AppKey Minting","details":"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.","modified":"2026-10-14T02:46:59.452470101Z","published":"2026-10-11T13:26:04.558Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-639"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108856.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108856.json"},{"type":"ADVISORY","url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/unicomai-wanwu-mcp-key-arbitrary-resource"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108856"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/unicomai-wanwu-through-0.6.5-authorization-bypass-via-v1-appspace-app-key-appkey-minting"},{"type":"PACKAGE","url":"https://github.com/UnicomAI/wanwu"},{"type":"ARTICLE","url":"https://github.com/UnicomAI/wanwu/blob/v0.6.5/internal/app-service/client/orm/app_key.go#L37-L49"},{"type":"ARTICLE","url":"https://github.com/UnicomAI/wanwu/blob/v0.6.5/internal/bff-service/server/http/middleware/auth_openapi.go#L46-L70"},{"type":"EVIDENCE","url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/cve-2026-108856-unicomai-wanwu-mcp-key-arbitrary-resource"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/unicomai/wanwu","events":[{"introduced":"0"},{"fixed":"4d4b150e9fe517cbb0a303d74ad0b74c5b1e81b9"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.6.5"},{"fixed":"0.6.5"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.10","v0.5.9","v0.5.8","v0.5.7","v0.5.6","v0.5.5","v0.5.4","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.5","v0.4.3","v0.4.1","v0.4.2","v0.4.0","v0.3.7","v0.3.6","v0.3.5","v0.3.4","v0.3.3","v0.3.2","v0.3.1","v0.3.0","v0.2.9","v0.2.8","v0.2.7","v0.2.6","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0","v0.1.8","v0.1.7","v0.1.5","v0.1.3-dc97f77","v0.1.3","v0.1.2","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108856.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}