{"id":"GHSA-m639-9whg-fw97","summary":"Prototype Pollution in object-extend","details":"The package object-extend from 0.0.0 through 0.5.0 is vulnerable to Prototype Pollution via object-extend.","aliases":["CVE-2021-23702"],"modified":"2026-03-14T01:41:21.731610Z","published":"2022-02-19T00:01:25Z","database_specific":{"cwe_ids":["CWE-1321"],"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2022-02-22T20:51:50Z","nvd_published_at":"2022-02-18T20:15:00Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23702"},{"type":"PACKAGE","url":"https://github.com/bernhardw/object-extend"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-JS-OBJECTEXTEND-2401470"}],"affected":[{"package":{"name":"object-extend","ecosystem":"npm","purl":"pkg:npm/object-extend"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"0.5.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-m639-9whg-fw97/GHSA-m639-9whg-fw97.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}