CVE-2025-64106

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/cursor/cursor/security/advisories/GHSA-4575-fh42-7848	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:anysphere:cursor:*:*:*:*:*:*:*:*

History

19 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Cursor es un editor de código diseñado para programar con IA. En las versiones 1.7.28 e inferiores, una falla de validación de entrada en la instalación del servidor MCP de Cursor permite que deep-links especialmente diseñados omitan las advertencias de seguridad estándar y oculten comandos ejecutados a los usuarios si eligen aceptar el servidor. Si un atacante logra convencer a una víctima de navegar a un deeplink malicioso, la víctima no verá el modal de advertencia (speedbump) correcto, y si elige aceptar, ejecutará comandos especificados por el deeplink del atacante.

Information

Published : 2025-11-04 23:15

Updated : 2026-10-19 13:10

NVD link : CVE-2025-64106

Mitre link : CVE-2025-64106

CVE.ORG link : CVE-2025-64106

JSON object : View

Products Affected

anysphere

cursor

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

{"id": "CVE-2025-64106", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-64106", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2025-11-05T14:18:35.811455Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "cursor", "product": "cursor", "versions": [{"status": "affected", "version": "< 2.0"}]}]}], "published": "2025-11-04T23:15:44.170", "references": [{"url": "https://github.com/cursor/cursor/security/advisories/GHSA-4575-fh42-7848", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Cursor es un editor de c\u00f3digo dise\u00f1ado para programar con IA. En las versiones 1.7.28 e inferiores, una falla de validaci\u00f3n de entrada en la instalaci\u00f3n del servidor MCP de Cursor permite que deep-links especialmente dise\u00f1ados omitan las advertencias de seguridad est\u00e1ndar y oculten comandos ejecutados a los usuarios si eligen aceptar el servidor. Si un atacante logra convencer a una v\u00edctima de navegar a un deeplink malicioso, la v\u00edctima no ver\u00e1 el modal de advertencia (speedbump) correcto, y si elige aceptar, ejecutar\u00e1 comandos especificados por el deeplink del atacante."}], "lastModified": "2026-10-19T13:10:00.110", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:anysphere:cursor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "630DF821-F0CF-4B9C-BC9F-EB7B9FD9E4C3", "versionEndExcluding": "2.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}