Calling fetch(url) and not consuming the incoming body ((or consuming it very slowing) will lead to a memory leak. 
Patched in v6.6.1
Make sure to always consume the incoming body.
{
    "nvd_published_at": "2024-02-16T22:15:07Z",
    "severity": "MODERATE",
    "github_reviewed_at": "2024-02-16T15:59:38Z",
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-400",
        "CWE-401"
    ]
}