A remote code execution vulnerability was identified in GitHub Copilot, a code completion tool integrated into JetBrains products, allowing authorized attackers to disclose sensitive information locally. The vulnerability, CVE-2026-83953, arises from improper neutralization of special elements in user input, enabling command injection attacks. This issue matters to developers and operators of AI-powered tools as it could potentially expose confidential project information, code snippets, and other sensitive data. To mitigate this vulnerability, users are advised to update their JetBrains products to the latest version, which includes a patch to address the issue.