CVE-2026-48124 — Cursor Desktop sandbox escape via Claude hook configuration
Cursor is a code editor built for programming with AI. In versions prior to 3.0.0, the Cursor Desktop could execute workspace-defined Claude hook commands from .claude/settings.…
Published: 2026-06-15 · CVSS: 8.5 · CVSS 4.0
Cursor is a code editor built for programming with AI. In versions prior to 3.0.0, the Cursor Desktop could execute workspace-defined Claude hook commands from .claude/settings.local.json without dedicated user approval. A malicious workspace or agent-created file could configure hooks that run local commands in the user's context when an agent turn ends. This could allow sandbox escape, persistence across turns, local data access, or follow-on compromise. This issue has been fixed in version 3.0.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7