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TI-2026-51355 Aliases CVE-2026-73218

Cursor: Sandbox escape via launching privileged containers

Priority LOW 37CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
Present
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

Cursor is a code editor built for programming with AI. Prior to 3.0.0, Cursor IDE for macOS allows an agent running in Auto-Run Sandbox mode, when Docker Desktop and the Dev Containers CLI are installed, to launch a privileged container and mount Docker's virtiofs0, granting read and write access to the user's home directory and enabling host command execution with the user's privileges without an additional permission prompt. This issue is fixed in version 3.0.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00634 50th percentileScored 2026-11-07
Fix Fixed cursor (cursor): 3.0.0

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 3.0.03.0.0Patch availableCNA
  • cursor Vendorcursor Affected before 3.0.0 Fixed in 3.0.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:anysphere:cursor:*:*:*:*:*:*:*:*——cursor
  • cpe:2.3:a:anysphere:cursor:*:*:*:*:*:*:*:* Versions — — ·cursor

Remediation

  • Fix · CNA cursor (cursor) Fixed in 3.0.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73218
  2. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Other 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-2025-38624 OS command injection in cursor CVSS 3.1CRITICAL 9.8
  • 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
See all 28 →

Sources

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