Cursor — Vulnerability (CVE-2025-64106)
Date: 2025-11
Affected: anysphere/cursor
Attack vector: command-injection
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2025-64106
CWE: CWE-78
CVSS: 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Cursor is a code editor built for programming with AI. In versions 1.7.28 and below, an input validation flaw in Cursor's MCP server installation enables specially crafted deep-links to bypass the standard security warnings and conceal executed commands from users if they choose to accept the server. If an attacker is able to convince a victim to navigate to a malicious deeplink, the victim will not see the correct speedbump modal, and if they choose to accept, will execute commands specified by the attackers deeplink.


Mitigations:

Architectural layers (MAESTRO):