{"id":"CVE-2021-23442","aliases":["EUVD-2021-2020","GHSA-92v9-xh2q-fq9f","SNYK-JS-COOKIEXDEEP-1582793"],"status":"published","title":"Prototype Pollution","description":"This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:P/RL:O/RC:R","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0159,"percentile":0.76006,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1321","CWE-915"],"published":"2021-09-17T09:45:13Z","modified":"2026-10-20T10:53:37Z","fixes":[{"ecosystem":"npm","package":"@cookiex/deep","fixed_in":["0.0.7"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@cookiex/deep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.7"}]}]},{"source":"osv","ecosystem":"npm","package":"@cookiex/deep","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.7"}]}]}],"products":[{"vendor":"cookiex-deep_project","product":"cookiex-deep"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-COOKIEXDEEP-1582793","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/tony-tsx/cookiex-deep/issues/1","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/tony-tsx/cookiex-deep/commit/b5bea2b7f34a5fa9abb4446cbd038ecdbcd09c88","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23442","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-92v9-xh2q-fq9f"},{"url":"https://github.com/tony-tsx/cookiex-deep","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-23442","title":"Prototype Pollution","description":"This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.","status":"published","published":"2021-09-17T09:45:13.166Z","modified":"2024-09-16T22:15:53.817Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:P/RL:O/RC:R","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-2020","description":"This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.","status":"published","published":"2021-09-17T09:45:13Z","modified":"2024-09-16T22:15:53Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:P/RL:O/RC:R","level":"high"}],"updated_at":"2026-11-03T00:55:04.418269Z"}],"ghsa":[{"id":"GHSA-92v9-xh2q-fq9f","title":"Prototype Pollution in cookiex/deep","description":"The npm @cookiex/deep package before version 0.0.7 has a prototype pollution vulnerability. The global proto object can be polluted using the __proto__ object.","status":"published","published":"2021-09-20T20:12:38Z","modified":"2023-01-27T05:07:37Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high"}],"cwes":["CWE-915","CWE-1321"],"updated_at":"2026-11-02T14:36:22.592333Z"}],"nvd":[{"id":"CVE-2021-23442","description":"This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.","status":"published","published":"2021-09-17T10:15:07.437Z","modified":"2026-06-17T03:38:46.197Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T14:06:58.933037Z"}],"osv":[{"id":"CVE-2021-23442","description":"This affects all versions of package @cookiex/deep. The global proto object can be polluted using the __proto__ object.","status":"published","published":"2021-09-17T10:15:07.437Z","modified":"2026-10-20T10:53:37.858316186Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:18.778776Z"},{"id":"GHSA-92v9-xh2q-fq9f","title":"Prototype Pollution in cookiex/deep","description":"The npm @cookiex/deep package before version 0.0.7 has a prototype pollution vulnerability. The global proto object can be polluted using the __proto__ object.","status":"published","published":"2021-09-20T20:12:38Z","modified":"2026-09-10T03:49:08.611119532Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","level":"high"}],"cwes":["CWE-1321","CWE-915"],"updated_at":"2026-11-02T15:46:43.123867Z"}]}}