{"id":"CVE-2021-23568","details":"The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge.","aliases":["GHSA-gjm5-83cw-p3p2"],"modified":"2026-07-09T11:23:57.322500Z","published":"2022-01-10T14:10:17.043Z","references":[{"type":"WEB","url":"https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60"},{"type":"FIX","url":"https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8"},{"type":"FIX","url":"https://github.com/eggjs/extend2/pull/2"},{"type":"EVIDENCE","url":"https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eggjs/extend2","events":[{"introduced":"0"},{"fixed":"28b347dc661790a6d8d8050c2b59f5586bf3ae63"},{"fixed":"aa332a59116c8398976434b57ea477c6823054f8"}],"database_specific":{"cpe":"cpe:2.3:a:eggjs:extend2:*:*:*:*:*:node.js:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.0.1"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["1.0.0","v3.0.0","v2.0.1","v2.0.0","v1.3.0","v1.2.1","v1.2.0","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23568.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}