Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/microsoft/UFO/commit/3851c5d4e17c2865c56a94a6530692bf6e7a9b02
- https://github.com/microsoft/UFO/releases/tag/v3.0.8
- https://github.com/microsoft/UFO/security/advisories/GHSA-vf4c-mf32-gf2h
FAQ
What is CVE-2026-62316?
CVE-2026-62316 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 l...
How severe is CVE-2026-62316?
CVE-2026-62316 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-62316?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.