{"id":"CVE-2018-16486","aliases":["EUVD-2019-0323","GHSA-pjxw-22xf-6pwc"],"status":"published","title":"Prototype Pollution in defaults-deep","description":"A prototype pollution vulnerability was found in defaults-deep \u003c=0.2.4 that would allow a malicious user to inject properties onto Object.prototype.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01481,"percentile":0.74107,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-345","CWE-400","CWE-74"],"published":"2019-02-01T18:00:00Z","modified":"2026-06-17T01:44:22Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"defaults-deep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.2.4"}]}]},{"source":"osv","ecosystem":"npm","package":"defaults-deep","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"0.2.4"}]}]}],"products":[{"vendor":"defaults-deep_project","product":"defaults-deep"},{"vendor":"hackerone","product":"defaults-deep"}],"references":[{"url":"https://hackerone.com/reports/380878","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-16486","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-pjxw-22xf-6pwc","tags":["advisory"]},{"url":"https://www.npmjs.com/advisories/778","tags":["web"]},{"url":"https://github.com/jonschlinkert/defaults-deep","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-16486","description":"A prototype pollution vulnerability was found in defaults-deep \u003c=0.2.4 that would allow a malicious user to inject properties onto Object.prototype.","status":"published","published":"2019-02-01T18:00:00Z","modified":"2024-08-05T10:24:32.798Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:35:11.426178Z"}],"euvd":[{"id":"EUVD-2019-0323","description":"A prototype pollution vulnerability was found in defaults-deep \u003c=0.2.4 that would allow a malicious user to inject properties onto Object.prototype.","status":"published","published":"2019-02-01T18:00:00Z","modified":"2024-08-05T10:24:32Z","updated_at":"2026-11-03T02:39:40.768074Z"}],"ghsa":[{"id":"GHSA-pjxw-22xf-6pwc","title":"Prototype Pollution in defaults-deep","description":"All versions of `defaults-deep` are vulnerable to prototype pollution. Provided certain input `defaults-deep` can add or modify properties of the `Object` prototype. These properties will be present on all objects.\n\n\n## Recommendation\n\nAs no patch is currently available for this vulnerability it is our recommendation to select another module that can provide this functionality.","status":"published","published":"2019-02-07T18:16:38Z","modified":"2023-09-12T21:05:04Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-345","CWE-400"],"updated_at":"2026-11-02T14:37:05.004935Z"}],"nvd":[{"id":"CVE-2018-16486","description":"A prototype pollution vulnerability was found in defaults-deep \u003c=0.2.4 that would allow a malicious user to inject properties onto Object.prototype.","status":"published","published":"2019-02-01T18:29:00.897Z","modified":"2026-06-17T01:44:22.767Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/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-400","CWE-74"],"updated_at":"2026-11-02T14:04:53.728218Z"}],"osv":[{"id":"GHSA-pjxw-22xf-6pwc","title":"Prototype Pollution in defaults-deep","description":"All versions of `defaults-deep` are vulnerable to prototype pollution. Provided certain input `defaults-deep` can add or modify properties of the `Object` prototype. These properties will be present on all objects.\n\n\n## Recommendation\n\nAs no patch is currently available for this vulnerability it is our recommendation to select another module that can provide this functionality.","status":"published","published":"2019-02-07T18:16:38Z","modified":"2023-11-08T04:00:00.749502Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-345","CWE-400"],"updated_at":"2026-11-02T15:46:53.244788Z"}]}}