Codex CLI hangs indefinitely on prompt (no response) on Fedora with Node 22 – affects `codex` and `codex exec`

What version of Codex CLI is running?

codex-cli 0.112.0

What subscription do you have?

Plus

Which model were you using?

gpt-5.4

What platform is your computer?

Linux 6.18.5-200.fc43.x86_64 x86_64

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

Kitty

What issue are you seeing?

Codex CLI hangs indefinitely after accepting a prompt.
The prompt appears in the session output, but no response ever starts streaming and the CLI never finishes.

This happens both in:

interactive mode (codex)

non-interactive mode (codex exec)

Example command:

codex exec "hello"

Output:

OpenAI Codex v0.112.0 (research preview)
-------
workdir:
model: gpt-5.4
provider: openai
approval: never
sandbox: workspace-write [workdir, /tmp, $TMPDIR, *]
reasoning effort: medium
reasoning summaries: none
session id: 019cd2fb-b2a4-70a3-8390-22b8aba4ca37
-------

user
hello

After this point nothing else happens.

No response starts streaming and the CLI hangs indefinitely.

Additional observations:

Ctrl+C does not terminate the process.

I must kill the process or close the terminal.

The issue occurs even with a clean shell environment.

Example clean environment reproduction:

env -i HOME="$HOME" PATH="$PATH" TERM="$TERM" bash --noprofile --norc
codex exec "hello"

The behavior is the same.

What steps can reproduce the bug?

Install Codex CLI

npm install -g @openai/codex

Run a simple command:

codex exec "hello"

The CLI prints session metadata and the prompt:

user
hello

The process hangs indefinitely and no model response is produced.

This also occurs when running interactive mode:

codex

and submitting a prompt like:

hello

The prompt is displayed but no response is ever generated.

What is the expected behavior?

The CLI should send the request to the model and stream the response.

For example, running:

codex exec "hello"

should produce a response such as:

Hello! How can I help?

instead of hanging indefinitely.

Additional information

Environment:

OS: Fedora Linux
Terminal: kitty
Node: v22.20.0
npm: 10.9.3
Codex CLI version: 0.112.0
TERM: xterm-kitty

Notes:

The issue also occurred with Codex CLI v0.110.0.