Versions of the package algoliasearch-helper from 2.0.0-rc1 and before 3.11.2 are vulnerable to Prototype Pollution in the _merge() function in merge.js, which allows constructor.prototype to be written even though doing so throws an error.…

{
                    "product": "algoliasearch-helper",
                    "versions": [
                        {
                            "version": "2.0.0-rc1",
                            "lessThan": "3.11.2",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "vendor": "n/a"
                }