Input Validation Flaw in Code Editor Cursor Affects Users
CVE-2025-64106

8.8HIGH

Key Information:

Vendor

Cursor

Status
Cursor
Vendor
CVE Published:
4 November 2025

What is CVE-2025-64106?

An input validation flaw in cursor's MCP server in versions 1.7.28 and earlier allows crafted deep-links to bypass security warnings. If a user is tricked into following a malicious deeplink, the legitimate security prompts are suppressed, potentially leading to the execution of harmful commands. This vulnerability underscores the importance of strong input validation to ensure users are adequately protected from deceptive prompts.

Affected Version(s)

cursor < 2.0

References

https://github.com/cursor/cursor/security/advisories/GHSA...
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CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-64106 : Input Validation Flaw in Code Editor Cursor Affects Users