CVE-2026-26268

CriticalCVSS 9.9/10Last modified Jun 17, 2026

Description

Cursor is a code editor built for programming with AI. Sandbox escape via writing .git configuration was possible in versions prior to 2.5. A malicious agent (ie prompt injection) could write to improperly protected .git settings, including git hooks, which may cause out-of-sandbox RCE next time they are triggered. No user interaction was required as Git executes these commands automatically. Fixed in version 2.5.

Metrics

CVSS 3.1 9.9/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Feb 13, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-26268: Critical severity, CVSS 9.9 | Vulnix