{"id":"CVE-2020-28283","aliases":["EUVD-2021-2150","GHSA-3r9x-mjrm-2725"],"status":"published","title":"Prototype pollution vulnerability in 'libnested'","description":"Prototype pollution vulnerability in 'libnested' versions 0.0.0 through 1.5.0 allows an attacker to cause a denial of service and may lead to remote code execution.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03388,"percentile":0.88889,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-12-29T17:05:08Z","modified":"2026-10-20T10:53:04Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"libnested","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.0.0"},{"last_affected":"1.5.0"}]}]},{"source":"osv","ecosystem":"npm","package":"libnested","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0"},{"last_affected":"1.5.0"}]}]}],"products":[{"vendor":"libnested_project","product":"libnested"}],"references":[{"url":"https://github.com/dominictarr/libnested/blob/d028a1b0f2e5f16fc28e568f52b936ae0bca0647/index.js#L27","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2020-28284","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28283","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3r9x-mjrm-2725"},{"url":"https://github.com/dominictarr/libnested","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-28283","description":"Prototype pollution vulnerability in 'libnested' versions 0.0.0 through 1.5.0 allows an attacker to cause a denial of service and may lead to remote code execution.","status":"published","published":"2020-12-29T17:05:08Z","modified":"2024-08-04T16:33:58.219Z","updated_at":"2026-11-02T14:35:57.017407Z"}],"euvd":[{"id":"EUVD-2021-2150","description":"Prototype pollution vulnerability in 'libnested' versions 0.0.0 through 1.5.0 allows an attacker to cause a denial of service and may lead to remote code execution.","status":"published","published":"2020-12-29T17:05:08Z","modified":"2024-08-04T16:33:58Z","updated_at":"2026-11-03T03:07:10.123634Z"}],"ghsa":[{"id":"GHSA-3r9x-mjrm-2725","title":"Prototype pollution vulnerability in 'libnested'","description":"Prototype pollution vulnerability in 'libnested' versions 0.0.0 through 1.5.0 allows an attacker to cause a denial of service and may lead to remote code execution.","status":"published","published":"2021-10-12T16:27:02Z","modified":"2023-02-01T05:06:28Z","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":"2026-11-02T14:36:39.086869Z"}],"nvd":[{"id":"CVE-2020-28283","description":"Prototype pollution vulnerability in 'libnested' versions 0.0.0 through 1.5.0 allows an attacker to cause a denial of service and may lead to remote code execution.","status":"published","published":"2020-12-29T18:15:12.933Z","modified":"2026-06-17T03:10:16.563Z","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","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"}],"updated_at":"2026-11-02T14:06:28.340168Z"}],"osv":[{"id":"CVE-2020-28283","description":"Prototype pollution vulnerability in 'libnested' versions 0.0.0 through 1.5.0 allows an attacker to cause a denial of service and may lead to remote code execution.","status":"published","published":"2020-12-29T18:15:12.933Z","modified":"2026-10-20T10:53:04.515439364Z","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":"2026-11-02T15:44:16.248747Z"},{"id":"GHSA-3r9x-mjrm-2725","title":"Prototype pollution vulnerability in 'libnested'","description":"Prototype pollution vulnerability in 'libnested' versions 0.0.0 through 1.5.0 allows an attacker to cause a denial of service and may lead to remote code execution.","status":"published","published":"2021-10-12T16:27:02Z","modified":"2023-11-08T04:03:25.014908Z","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":"2026-11-02T15:46:36.092962Z"}]}}