Paper/Archive/CVE-2026-26268

CVE-2026-26268

cursor cursor — Cursor sandbox escape via Git hooks

CVSS 9.9 (NVD)9.9 / 10 × 3029.7 Not in CISA KEV+300.0 EPSS percentile 53.2.532 × 2010.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

cursor< 2.5–CNA

Scores by source

NVD9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

GitHub_M (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/cursor/cursor/security/advisories/GHSA-8pcm-8jpx-hv8r