fastify vulnerable to header validation bypass via case-sensitive propertyNames

{
                    "vendor": "fastify",
                    "product": "fastify",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "versionType": "semver",
                            "status": "affected",
                            "version": "5.12.2",
                            "lessThan": "5.12.6"
                        },
                        {
                            "versionType": "semver",
                            "status": "unaffected",
                            "version": "5.12.6"
                        }
                    ],
                    "packageURL": "pkg:npm/fastify"
                }