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CVE-2026-31854

HIGH CVSS 4.0: 8.7 EPSS 0.05%
Updated Mar 11, 2026
Cursor
Parameter Value
CVSS 8.7 (HIGH)
Fixed In 2.0
Type CWE-78 (OS Command Injection)
Vendor Cursor
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)