{"id":"CVE-2021-23442","aliases":["GHSA-92v9-xh2q-fq9f"],"url":"https://o3.security/vulnerability/CVE-2021-23442","summary":"Prototype Pollution in cookiex/deep","details":"This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.","published":"2021-09-17T10:15:07.437Z","modified":"2026-07-08T06:27:49.847220960Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"npm","name":"@cookiex/deep","fixedVersion":"0.0.7"}],"fix":{"url":"https://github.com/tony-tsx/cookiex-deep/commit/b5bea2b7f34a5fa9abb4446cbd038ecdbcd09c88","label":"tony-tsx/cookiex-deep@b5bea2b"},"references":[{"type":"FIX","url":"https://github.com/tony-tsx/cookiex-deep/commit/b5bea2b7f34a5fa9abb4446cbd038ecdbcd09c88"},{"type":"FIX","url":"https://github.com/tony-tsx/cookiex-deep/issues/1"},{"type":"FIX","url":"https://snyk.io/vuln/SNYK-JS-COOKIEXDEEP-1582793"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:27:49.847220960Z"}}