# CVE-2025-64109: Cursor CLI Beta: Command Injection via Untrusted MCP Configuration

> CVE-2025-64109: Cursor CLI Beta: Command Injection via Untrusted MCP Configuration. CVSS 8.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-64109
Last updated: 2026-10-19T13:10:00Z

- Published: 2025-11-04 23:09 UTC · Updated: 2026-10-19 13:10 UTC · Assigner: GitHub\_M
- CVSS: 8.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 0.52%, 44th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-78

## Description

Cursor is a code editor built for programming with AI. In versions and below, a vulnerability in the Cursor CLI Beta allowed an attacker to achieve remote code execution through the MCP (Model Context Protocol) server mechanism by uploading a malicious MCP configuration in .cursor/mcp.json file in a GitHub repository. Once a victim clones the project and opens it using Cursor CLI, the command to run the malicious MCP server is immediately executed without any warning, leading to potential code execution as soon as the command runs. This issue is fixed in version 2025.09.17-25b418f.

## Affected vendors and products

- cursor: cursor

## Tracked companies

- [Cursor](https://rewindex.com/company/cursor.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-64109)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-64109)
- [https://github.com/cursor/cursor/security/advisories/GHSA-4hwr-97q3-37w2](https://github.com/cursor/cursor/security/advisories/GHSA-4hwr-97q3-37w2)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-64109 · Markdown: https://rewindex.com/cve/CVE-2025-64109.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-64109 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:49.031Z