CVE-2026-73218

Cursor: Sandbox escape via launching privileged containers

State: Published
Severity: 7.7 High
Published: Aug 11, 2026
Updated: Aug 13, 2026
Reserved: Aug 11, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	7.7 High	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-269 Improper Privilege Management

Affected Products

Product	Versions
cursorcursor	< 3.0.0Affected

References

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

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