Cursor AI Coding Agent Vulnerability Allow Attackers to Execute Code on Developer’s Machine

A high-severity RCE vulnerability (CVE-2026-26268) in the Cursor AI coding environment enables attacker-controlled code to execute on developer machines when the Cursor agent interacts with a malicious repository that embeds a bare Git repository containing a hook; no user confirmation is required. The report details the attack vector (Git hooks + bare repositories), emphasizes the elevated risk to developer workstations and organizational infrastructure, and advises updating Cursor, auditing cloned repositories, and treating development environments as production-equivalent assets.