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TI-2025-39558 Aliases CVE-2025-64107

Cursor is Vulnerable to Path Manipulation Using Backslashes on Windows

Priority MEDIUM 40CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Cursor is a code editor built for programming with AI. In versions 1.7.52 and below, manipulating internal settings may lead to RCE. Cursor detects path manipulation via forward slashes (./.cursor/./././././mcp.json etc.), and requires human approval to complete the operation. However, the same kind of manipulation using backslashes was not correctly detected, allowing an attacker who had already achieved prompt injection or some other level of control to overwrite sensitive editor files without approval on Windows machines. This issue is fixed in version 2.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00382 32nd percentileScored 2026-11-07
Fix Fixed cursor (cursor): 2.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
cursorcursorbefore 2.02.0Patch availableCNA
  • cursor Vendorcursor Affected before 2.0 Fixed in 2.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:anysphere:cursor:*:*:*:*:*:windows:*:*before 2.0Vulnerablecursor
  • cpe:2.3:a:anysphere:cursor:*:*:*:*:*:windows:*:* Versions before 2.0 Vulnerable ·cursor

Remediation

  • Fix · CNA cursor (cursor) Fixed in 2.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-64107

References

Advisory 1

  • TI-2026-45043 Cursor for Windows 3.2.16 RCE via Malicious git.exe in Workspace CVSS 4.0HIGH 8.7
  • TI-2025-33979 Cursor's Modification of MCP Server Definitions Bypasses Manual Re-approvals CVSS 3.1HIGH 8.8
  • TI-2026-37271 Cursor Desktop sandbox escape via symlink and failed path canonicalization CVSS 4.0CRITICAL 9.3
  • TI-2026-37270 Cursor Desktop sandbox escape via agent-controlled working directory CVSS 4.0CRITICAL 9.3
  • TI-2025-38037 Cursor CLI's Cursor Agent MCP OAuth2 Communication is Vulnerable to Remote Code Execution CVSS 3.1HIGH 8.8
  • TI-2025-33978 Cursor Agent is vulnerable to prompt injection via MCP Special Files CVSS 3.1CRITICAL 9.8
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences