CVE-2026-73218

Cursor: Sandbox escape via launching privileged containers

HIGH

7.7

CVSS Score

Published: August 11, 2026 at 05:47 PM UTC

Updated: September 9, 2026 at 09:17 PM UTC

1 product affected across 1 vendorCursor

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Severity

HIGH7.7

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cursor · Cursor

60%

v < 3.0.0

Affected range stops below 3.0.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM

Source: cverecord

https://github.com/cursor/cursor/security/advisories/GHSA-v4xv-rqh3-w9mc

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHGitHub_M

Vector?

Quick Info

StatusAWAITING ANALYSIS

CWE

CWE-269

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