Critical Cursor Flaws Could Let Prompt Injection Escape Sandbox and Run Commands
Critical Cursor Flaws Could Let Prompt Injection Escape Sandbox and Run Commands
01 July 2026
Two flaws in Cursor, an AI code editor, could let a single, ordinary-looking prompt break out of the editor's safety sandbox and run any command on a developer's computer. There is no click to fall for and no approval box to ignore.
Cato AI Labs found the pair and named them DuneSlide. They are tracked as CVE-2026-50548 and CVE-2026-50549, both rated 9.8 out of 10 (or 9.3