{"cve":"CVE-2020-7746","nvd":{"published":"2020-10-29T08:15:12.007","modified":"2026-06-17T03:25:22.310","status":"Modified","description":"This affects the package chart.js before 2.9.4. The options parameter is not properly sanitized when it is processed. When the options are processed, the existing options (or the defaults options) are deeply merged with provided options. However, during this operation, the keys of the object being set are not checked, leading to a prototype pollution.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-1321"],"references":["https://github.com/chartjs/Chart.js/pull/7920","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1019375","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBCHARTJS-1019376","https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1019374","https://snyk.io/vuln/SNYK-JS-CHARTJS-1018716"],"products":["chartjs:chart.js"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-7746","score":0.04735,"percentile":0.91857,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-h68q-55jf-x68w","url":"https://osv.dev/vulnerability/GHSA-h68q-55jf-x68w","summary":"Prototype pollution in chart.js","modified":"2025-01-14T08:57:32.355272Z","packages":[{"ecosystem":"npm","name":"chart.js","purl":"pkg:npm/chart.js","ranges":["<2.9.4"],"fixed":["2.9.4"]}]}],"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."]}