Based on the great work by @Blackfan
See the moopinger blog for more information https://moopinger.github.io/blog/crlf/injection/2024/03/12/CRLF-Injection-Shenanigans.html
git clone https://github.com/moopinger/crlf-detection-script.git
cd crlf-detection-script
pip install -r requirements.txt
python crlf.py
Thanks @thefisherman2103 for the following:
If you try to run it with Python 3.9 than you'll get error such as ImportError: Using http2=True, but the 'h2' package is not installed. Make sure to install httpx using pip install httpx[http2].
pip install 'httpx[http2]' solve it.