Cybersecurity false postive when fuzzing a newly written input parsing library

What version of Codex CLI is running?

codex-cli 0.144.1

What subscription do you have?

pro 20

Which model were you using?

gpt-5.6-ultra

What platform is your computer?

Linux

What terminal emulator and version are you using (if applicable)?

_No response_

Codex doctor report

What issue are you seeing?

I had Codex write a new file parser for a new library we wrote earlier today. I then asked Codex to fuzz the library against bad inputs to make sure we were not going to crash or behave in bad ways (e.g. go OOM/allocate large buffers, etc)

When Codex potentially found an issue(?), it then redacted the reply and won't do any further work. I have attempted this three times now.

Fuzzing while it has dual purposes in security, is a very standard technique used for hardening input handlers and preventing them from becoming exploitable surfaces.

What steps can reproduce the bug?

Uploaded thread: 019f57b9-5b4f-7ce1-8ad0-05d7321c8386

What is the expected behavior?

It should fuzz the library, find the faults, then fix them.

Additional information

_No response_