{"cve":"CVE-2021-23408","nvd":{"published":"2021-07-21T16:15:08.613","modified":"2026-06-17T03:38:42.600","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-1321"],"references":["https://github.com/graphhopper/graphhopper/pull/2370","https://github.com/graphhopper/graphhopper/releases/tag/3.1","https://github.com/graphhopper/graphhopper/releases/tag/3.2","https://snyk.io/vuln/SNYK-JAVA-COMGRAPHHOPPER-1320114","https://github.com/graphhopper/graphhopper/pull/2370"],"products":["graphhopper:graphhopper"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-23408","score":0.01401,"percentile":0.72515,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qhxh-9hhx-6p7v","url":"https://osv.dev/vulnerability/GHSA-qhxh-9hhx-6p7v","summary":"Prototype Pollution in GraphHopper","modified":"2026-07-08T06:49:31.391180521Z","packages":[{"ecosystem":"Maven","name":"com.graphhopper:graphhopper-web-bundle","purl":"pkg:maven/com.graphhopper/graphhopper-web-bundle","ranges":["<3.2"],"fixed":["3.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}