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Improper Neutralization of Escape, Meta, or Control Sequences


Severity High
Score 8.8/10


Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Arbitrary program names without any ANSI filtering allows any malicious program to clear the first 2 lines of a `op_spawn_child` or `op_kill` prompt and replace it with any desired text. This works with any command on the respective platform, giving the program the full ability to choose what program they wanted to run. This problem can not be exploited on systems that do not attach an interactive prompt (for example headless servers). This issue has been patched in version 1.31.2.

  • LOW
  • HIGH
  • NONE
  • HIGH
  • HIGH

CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences

The software receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component.


Advisory Timeline

  • Published