{"cve":"CVE-2020-8268","nvd":{"published":"2020-11-09T15:15:13.523","modified":"2026-06-17T03:26:09.880","status":"Modified","description":"Prototype pollution vulnerability in json8-merge-patch npm package < 1.0.3 may allow attackers to inject or modify methods and properties of the global object constructor.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-20","CWE-471"],"references":["https://hackerone.com/reports/980649","https://hackerone.com/reports/980649"],"products":["json8-merge-patch_project:json8-merge-patch"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-8268","score":0.01293,"percentile":0.70303,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8v9x-9xqg-r8mr","url":"https://osv.dev/vulnerability/GHSA-8v9x-9xqg-r8mr","summary":"Prototype pollution in json8-merge-patch","modified":"2023-11-08T04:04:16.264418Z","packages":[{"ecosystem":"npm","name":"json8-merge-patch","purl":"pkg:npm/json8-merge-patch","ranges":["<1.0.3"],"fixed":["1.0.3"]}]}],"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."]}