This affects the package com.graphhopper:graphhopper-web-bundle before 3.2, from 4.0-pre1 and before 4.0. The URL parser could be tricked into adding or modifying properties of Object.prototype using a constructor or proto payload.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-23408.json"