CVE-2026-73217

Cursor: Sandbox escape via tampered Python virtual environments

HIGH

7.7

CVSS Score

Published: August 11, 2026 at 05:46 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 0.4%

SSVC

No known exploit

Description

Cursor is a code editor built for programming with AI. Prior to 3.1.2, Cursor IDE for macOS allows an agent running in Auto-Run Sandbox mode to replace a virtual environment's Python executable with a malicious wrapper that the Microsoft Python extension invokes outside the sandbox, allowing arbitrary host commands with the user's privileges, including modifying files outside the workspace and launching applications. This issue is fixed in version 3.1.2.

Affected

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

Cursor · Cursor

60%

v < 3.1.2

Affected range stops below 3.1.2, 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-p9g2-cr55-cw9c

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-693

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