Remote Code Execution Vulnerability in Cursor Code Editor by Cursor, Inc.
CVE-2025-64109

8.8HIGH

Key Information:

Vendor

Cursor

Status
Cursor
Vendor
CVE Published:
4 November 2025

What is CVE-2025-64109?

A vulnerability in the Cursor CLI Beta allows attackers to execute remote code by exploiting the MCP (Model Context Protocol) server. By uploading a malicious configuration file in the '.cursor/mcp.json' path within a GitHub repository, an attacker can trigger code execution. When a victim clones the repository and launches it using the Cursor CLI, the malicious MCP server command is executed immediately without any prompts, exposing the system to potential risks. This issue has been addressed in the latest version, 2025.09.17-25b418f.

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Affected Version(s)

cursor < 2025.09.17-25b418f

References

https://github.com/cursor/cursor/security/advisories/GHSA...
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CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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