{"id":"CVE-2021-23448","aliases":["EUVD-2021-2141","GHSA-2w3f-9w3q-qw77","SNYK-JS-CONFIGHANDLER-1564947"],"status":"published","title":"Prototype Pollution","description":"All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01193,"percentile":0.68259,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1321","CWE-913"],"published":"2021-10-11T20:15:12Z","modified":"2026-10-20T10:54:32Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"config-handler","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.0.3"}]}]},{"source":"osv","ecosystem":"npm","package":"config-handler","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.0.3"}]}]}],"products":[{"vendor":"config-handler_project","product":"config-handler"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JS-CONFIGHANDLER-1564947","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Mitigation","Third Party Advisory","report","web"]},{"url":"https://github.com/jarradseers/config-handler/issues/1","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23448","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2w3f-9w3q-qw77"},{"url":"https://github.com/jarradseers/config-handler","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-23448","title":"Prototype Pollution","description":"All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.","status":"published","published":"2021-10-11T20:15:12.313Z","modified":"2024-09-16T16:27:48.177Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-2141","description":"All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.","status":"published","published":"2021-10-11T20:15:12Z","modified":"2024-09-16T16:27:48Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T00:55:51.557415Z"}],"ghsa":[{"id":"GHSA-2w3f-9w3q-qw77","title":"Prototype Pollution in config-handler","description":"All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.","status":"published","published":"2021-10-12T18:30:37Z","modified":"2023-02-01T05:06:29Z","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"}],"cwes":["CWE-913"],"updated_at":"2026-11-02T14:36:39.086869Z"}],"nvd":[{"id":"CVE-2021-23448","description":"All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.","status":"published","published":"2021-10-11T21:15:07.48Z","modified":"2026-06-17T03:38:46.91Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","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":"2026-11-02T14:06:59.689345Z"}],"osv":[{"id":"CVE-2021-23448","description":"All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.","status":"published","published":"2021-10-11T21:15:07.48Z","modified":"2026-10-20T10:54:32.551734585Z","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-2w3f-9w3q-qw77","title":"Prototype Pollution in config-handler","description":"All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.","status":"published","published":"2021-10-12T18:30:37Z","modified":"2026-07-08T06:49:55.64146887Z","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"}],"cwes":["CWE-913"],"updated_at":"2026-11-02T15:46:34.700741Z"}]}}