{"cve":"CVE-2019-10794","nvd":{"published":"2020-02-18T16:15:10.390","modified":"2026-06-17T02:11:41.183","status":"Modified","description":"All versions of component-flatten are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":6.3},"cwes":["CWE-74"],"references":["https://snyk.io/vuln/SNYK-JS-COMPONENTFLATTEN-548907","https://snyk.io/vuln/SNYK-JS-COMPONENTFLATTEN-548907"],"products":["component-flatten_project:component-flatten"],"source":"nvd","synced_at":"2026-10-19T21:02:53.949909883+00:00"},"epss":{"cve":"CVE-2019-10794","score":0.00726,"percentile":0.54123,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-g6r3-hhg9-qf58","url":"https://osv.dev/vulnerability/GHSA-g6r3-hhg9-qf58","summary":"component-flatten vulnerable to Prototype Pollution","modified":"2023-11-08T04:00:57.273094Z","packages":[{"ecosystem":"npm","name":"component-flatten","purl":"pkg:npm/component-flatten","ranges":["<=1.0.1"],"fixed":[]}]}],"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."]}