libexpat through 2.9.0 Denial of Service via Billion Laughs Detection Delay

{
                    "vendor": "libexpat",
                    "product": "libexpat",
                    "packageURL": "pkg:github/libexpat/libexpat",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThanOrEqual": "2.9.0"
                        }
                    ],
                    "repo": "https://github.com/libexpat/libexpat"
                }