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.
Published: 2026-08-21
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 21 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft ufo
Vendors & Products Microsoft
Microsoft ufo

Fri, 21 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title Microsoft UFO: DNS Rebinding → Unauthenticated File Read / Command Execution
Weaknesses CWE-200
CWE-346
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-21T20:17:21.272Z

Reserved: 2026-07-13T19:27:58.314Z

Link: CVE-2026-62316

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-21T21:17:01.350

Modified: 2026-08-21T21:17:01.350

Link: CVE-2026-62316

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T21:45:03Z

Weaknesses