# CVE-2026-62316

## Summary

- **CVE ID:** CVE-2026-62316
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
- **CWE:** CWE-200, CWE-346
- **Published:** Aug 21, 2026
- **Last Modified:** Aug 25, 2026

## 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.

## Affected Products

- microsoft — UFO (< 3.0.8)

## References

- [CNA](https://github.com/microsoft/UFO/security/advisories/GHSA-vf4c-mf32-gf2h)
- [CNA](https://github.com/microsoft/UFO/commit/3851c5d4e17c2865c56a94a6530692bf6e7a9b02)
- [CNA](https://github.com/microsoft/UFO/releases/tag/v3.0.8)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.32%
- **EPSS Percentile:** 24.2

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._