Skip to content
OpenAdvisories
High · 8.8 CVE-2025-64106 EUVD-2025-37908

Cursor: Speedbump Modal Bypass in MCP Server Deep-Link

Published Nov 4, 2025 · Updated Nov 5, 2025 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
cursor cursor < 2.0 —

References