High severityNVD Advisory· Published Jun 17, 2026· Updated Jun 23, 2026
CVE-2026-48989
CVE-2026-48989
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.
AI Insight
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
windows-mcpPyPI | < 0.7.5 | 0.7.5 |
Affected products
1- Range: <0.7.5
Patches
Vulnerability mechanics
References
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