Windows-MCP is an open-source project that integrates AI agents with Windows. In versions prior to 0.7.5, certain HTTP modes exposed the MCP control plane without authentication while enabling wildcard CORS (allow_origins=*, allow_methods=*, allow_headers=*). Because the same server also exposed a PowerShell tool that executes caller-controlled commands as the Windows user running Windows-MCP, attackers could reach the control plane from arbitrary origins or non-browser clients and achieve arbitrary PowerShell execution. This issue was fixed in version 0.7.5.
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Thu, 18 Jun 2026 16:45:00 +0000
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| Description | Windows-MCP is an open-source project that integrates AI agents with Windows. In versions prior to 0.7.5, certain HTTP modes exposed the MCP control plane without authentication while enabling wildcard CORS (allow_origins=*, allow_methods=*, allow_headers=*). Because the same server also exposed a PowerShell tool that executes caller-controlled commands as the Windows user running Windows-MCP, attackers could reach the control plane from arbitrary origins or non-browser clients and achieve arbitrary PowerShell execution. This issue was fixed in version 0.7.5. | |
| Title | Windows-MCP: HTTP transports expose unauthenticated PowerShell control with wildcard CORS | |
| Weaknesses | CWE-306 | |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-18T15:44:08.967Z
Reserved: 2026-05-26T23:26:07.975Z
Link: CVE-2026-48989
Updated: 2026-06-18T15:44:04.160Z
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OpenCVE Enrichment
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