{"id":"CVE-2026-62316","summary":"Microsoft UFO: DNS Rebinding → Unauthenticated File Read / Command Execution","details":"Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, ufo/client/mcp/http_servers/linux_mcp_server.py binds a FastMCP streamable HTTP server to localhost:8010 but does not validate the Host, Origin, or Sec-Fetch-Site headers. An attacker-controlled web page can use DNS rebinding to reach the local /mcp endpoint, enumerate tool schemas through tools/list, and invoke execute_command with a valid UFO_MCP_API_KEY to read files or execute allowed operating system commands as the victim's user. This issue is fixed in version 3.0.8.","aliases":["GHSA-vf4c-mf32-gf2h"],"modified":"2026-08-23T03:49:31.840345218Z","published":"2026-08-21T20:17:21.272Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-200","CWE-346"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62316.json"},"references":[{"type":"WEB","url":"https://github.com/microsoft/UFO/releases/tag/v3.0.8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62316.json"},{"type":"ADVISORY","url":"https://github.com/microsoft/UFO/security/advisories/GHSA-vf4c-mf32-gf2h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62316"},{"type":"FIX","url":"https://github.com/microsoft/UFO/commit/3851c5d4e17c2865c56a94a6530692bf6e7a9b02"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/microsoft/ufo","events":[{"introduced":"0"},{"fixed":"3851c5d4e17c2865c56a94a6530692bf6e7a9b02"},{"fixed":"96983c73ed09e884a5f1d7ff8936c953b234b684"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"3.0.8"}]}}],"versions":["3.0.7","3.0.6","v3.0.1","v3.0.4","v3.0.3","v3.0.2","v3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62316.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}