The debug module is vulnerable to regular expression denial of service when untrusted user input is passed into the o formatter. It takes around 50k characters to block for 2 seconds making this a low severity issue.

{
                    "product": "debug node module",
                    "vendor": "HackerOne",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "<= 2.6.8 || >= 3.0.0 <= 3.0.1"
                        }
                    ]
                }