{"cve":"CVE-2021-3766","nvd":{"published":"2021-09-06T12:15:08.177","modified":"2026-06-17T04:05:43.447","status":"Modified","description":"objection.js is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('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/Vincit/objection.js/commit/46b842a6bc897198b83f41ac85c92864b991d7e9","https://huntr.dev/bounties/c98e0f0e-ebf2-4072-be73-a1848ea031cc","https://github.com/Vincit/objection.js/commit/46b842a6bc897198b83f41ac85c92864b991d7e9","https://huntr.dev/bounties/c98e0f0e-ebf2-4072-be73-a1848ea031cc"],"products":["objection_project:objection"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-3766","score":0.0147,"percentile":0.73763,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r659-8xfp-j327","url":"https://osv.dev/vulnerability/GHSA-r659-8xfp-j327","summary":"objection.js Prototype Pollution vulnerability","modified":"2023-11-08T04:06:20.840149Z","packages":[{"ecosystem":"npm","name":"objection","purl":"pkg:npm/objection","ranges":["<2.2.16"],"fixed":["2.2.16"]}]}],"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."]}