{"cve":"CVE-2021-23395","nvd":{"published":"2021-06-15T20:15:11.643","modified":"2026-06-17T03:38:41.057","status":"Modified","description":"This affects all versions of package nedb. The library could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor.prototype payload.","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:L/A:N","score":5.3},"cwes":["CWE-1321"],"references":["https://snyk.io/vuln/SNYK-JS-NEDB-1305279","https://snyk.io/vuln/SNYK-JS-NEDB-1305279"],"products":["nedb_project:nedb"],"source":"nvd","synced_at":"2026-10-19T21:20:07.141963181+00:00"},"epss":{"cve":"CVE-2021-23395","score":0.0087,"percentile":0.58811,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-339j-hqgx-qrrx","url":"https://osv.dev/vulnerability/GHSA-339j-hqgx-qrrx","summary":"Prototype Pollution in nedb","modified":"2023-11-08T04:05:07.148511Z","packages":[{"ecosystem":"npm","name":"nedb","purl":"pkg:npm/nedb","ranges":["<=1.8.0"],"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."]}