2024 critique argues Deno's permission system offers only superficial sandboxing
A developer published a 2024 post examining Deno's permissions system, which lets users grant JavaScript programs specific access rights like file reads or subprocess execution via flags such as --allow-read, or through runtime prompts that ask users to approve or deny access. The author argues this model, despite being marketed as 'secure by default,' has structural weaknesses that undermine its effectiveness as a security boundary.