{"id":"CVE-2021-23395","aliases":["EUVD-2021-1246","GHSA-339j-hqgx-qrrx"],"status":"published","title":"Prototype Pollution","description":"This affects all versions of package nedb. The library could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor.prototype payload.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0087,"percentile":0.59225,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1321"],"published":"2021-06-15T19:12:03Z","modified":"2026-06-17T03:38:41Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"nedb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.8.0"}]}]},{"source":"osv","ecosystem":"npm","package":"nedb","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.8.0"}]}]}],"products":[{"vendor":"nedb_project","product":"nedb"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-NEDB-1305279","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23395","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-339j-hqgx-qrrx"}],"sources":{"cve":[{"id":"CVE-2021-23395","title":"Prototype Pollution","description":"This affects all versions of package nedb. The library could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor.prototype payload.","status":"published","published":"2021-06-15T19:12:03.841Z","modified":"2024-09-16T23:05:40.914Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-1246","description":"This affects all versions of package nedb. The library could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor.prototype payload.","status":"published","published":"2021-06-15T19:12:03Z","modified":"2024-09-16T23:05:40Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"updated_at":"2026-11-03T00:54:57.254208Z"}],"ghsa":[{"id":"GHSA-339j-hqgx-qrrx","title":"Prototype Pollution in nedb","description":"This affects all versions of package nedb. The library could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor.prototype payload.","status":"published","published":"2021-06-21T17:13:06Z","modified":"2023-08-17T05:02:30Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T14:37:00.074932Z"}],"nvd":[{"id":"CVE-2021-23395","description":"This affects all versions of package nedb. The library could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor.prototype payload.","status":"published","published":"2021-06-15T20:15:11.643Z","modified":"2026-06-17T03:38:41.057Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T14:06:54.892562Z"}],"osv":[{"id":"GHSA-339j-hqgx-qrrx","title":"Prototype Pollution in nedb","description":"This affects all versions of package nedb. The library could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor.prototype payload.","status":"published","published":"2021-06-21T17:13:06Z","modified":"2023-11-08T04:05:07.148511Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-1321"],"updated_at":"2026-11-02T15:46:35.050232Z"}]}}