Ech0 before 5.0.1 Denial of Service via Accept-Language

{
                    "vendor": "lin-snow",
                    "product": "Ech0",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:golang/github.com/lin-snow/ech0",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "5.0.1"
                        },
                        {
                            "version": "5.0.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }