CVE-2025-64106

Cursor: Speedbump Modal Bypass in MCP Server Deep-Link

Published Nov 4, 2025 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Anysphere
Anysphere cursor
CPEs cpe:2.3:a:anysphere:cursor:*:*:*:*:*:*:*:*
Vendors & Products Anysphere
Anysphere cursor
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Cursor
Cursor cursor
Vendors & Products Cursor
Cursor cursor
Type Values Removed Values Added
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.
Title Cursor: Speedbump Modal Bypass in MCP Server Deep-Link
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 5, 2025, 6:47 PM
Reserved
Oct 27, 2025, 3:26 PM
Status
Analyzed
Published
Nov 4, 2025, 11:15 PM
Modified
Oct 19, 2026, 1:10 PM