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.
Published: 2026-06-17
Score: 8.9 High
EPSS: < 1% Very Low
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
Source ID Title
Github GHSA Github GHSA GHSA-vrxg-gm77-7q5g Windows-MCP: HTTP transports expose unauthenticated PowerShell control with wildcard CORS
History

Sun, 21 Jun 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Cursortouch
Cursortouch windows-mcp
Vendors & Products Cursortouch
Cursortouch windows-mcp

Thu, 18 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 18 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
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
References
Metrics cvssV4_0

{'score': 8.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}


Subscriptions

Cursortouch Windows-mcp
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-18T15:44:08.967Z

Reserved: 2026-05-26T23:26:07.975Z

Link: CVE-2026-48989

cve-icon Vulnrichment

Updated: 2026-06-18T15:44:04.160Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-20T22:57:01Z

Weaknesses