CVE-2026-31854

Cursor is a code editor built for programming with AI. Prior to 2.0 ,if a visited website contains maliciously crafted instructions, the model may attempt to follow them in order to “assist” the user. When combined with a bypass of the command whitelist mechanism, such indirect prompt injections could result in commands being executed automatically, without the user’s explicit intent, thereby posing a significant security risk. This vulnerability is fixed in 2.0.

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-hf2x-r83r-qw5q	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

20 Mar 2026, 16:34

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
CPE		cpe:2.3:a:anysphere:cursor::::::::
References	~~() https://github.com/cursor/cursor/security/advisories/GHSA-hf2x-r83r-qw5q -~~	() https://github.com/cursor/cursor/security/advisories/GHSA-hf2x-r83r-qw5q - Vendor Advisory
First Time		Anysphere cursor Anysphere
Summary		(es) Cursor es un editor de código diseñado para programar con IA. Antes de 2.0, si un sitio web visitado contiene instrucciones creadas maliciosamente, el modelo podría intentar seguirlas para 'asistir' al usuario. Cuando se combina con una omisión del mecanismo de lista blanca de comandos, tales inyecciones de prompt indirectas podrían resultar en la ejecución automática de comandos, sin la intención explícita del usuario, lo que representa un riesgo de seguridad significativo. Esta vulnerabilidad se ha corregido en 2.0.

11 Mar 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-11 17:16

Updated : 2026-03-20 16:34

NVD link : CVE-2026-31854

Mitre link : CVE-2026-31854

CVE.ORG link : CVE-2026-31854

JSON object : View

Products Affected

anysphere

cursor

CWE

CWE-78

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

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