CVE-2026-73218: Cursor: Sandbox escape via launching privileged containers
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Cursor IDE (macOS)to a version that resolves this vulnerability.Fixed in 3.0.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-73218?
CVE-2026-73218 has a risk score of 58, indicating a moderate severity level.
How do I fix CVE-2026-73218?
To mitigate CVE-2026-73218, upgrade Cursor IDE for macOS to version 3.0.0 or higher.
What systems are affected by CVE-2026-73218?
CVE-2026-73218 affects Cursor IDE for macOS versions prior to 3.0.0.
What does CVE-2026-73218 allow attackers to do?
CVE-2026-73218 allows attackers to escape the sandbox and launch privileged containers with access to Docker's virtiofs0.
Can CVE-2026-73218 impact my development environment?
Yes, CVE-2026-73218 could compromise your development environment by allowing unauthorized access to host resources.