{"id":"CVE-2021-27191","aliases":["EUVD-2021-0776","GHSA-6q4w-3wp4-q5wf"],"status":"published","title":"Denial of Service in get-ip-range","description":"The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.02056,"percentile":0.81569,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2021-02-11T16:21:43Z","modified":"2026-10-20T10:54:35Z","fixes":[{"ecosystem":"npm","package":"get-ip-range","fixed_in":["4.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"get-ip-range","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"get-ip-range","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.0.0"}]}]}],"products":[{"vendor":"get-ip-range_project","product":"get-ip-range"}],"references":[{"url":"https://github.com/JoeScho/get-ip-range/commit/98ca22b815c77273cbab259811ab0976118e13b6","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://www.npmjs.com/package/get-ip-range","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","advisory","web"]},{"url":"https://security.netapp.com/advisory/ntap-20210319-0002/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://advisory.checkmarx.net/advisory/CX-2021-4304","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27191","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6q4w-3wp4-q5wf"},{"url":"https://security.netapp.com/advisory/ntap-20210319-0002","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2021-27191","description":"The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.","status":"published","published":"2021-02-11T16:21:43Z","modified":"2024-08-03T20:40:47.403Z","updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-0776","description":"The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.","status":"published","published":"2021-02-11T16:21:43Z","modified":"2024-08-03T20:40:47Z","updated_at":"2026-11-03T03:24:50.383074Z"}],"ghsa":[{"id":"GHSA-6q4w-3wp4-q5wf","title":"Denial of Service in get-ip-range","description":"The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion. Update get-ip-range dependency to 4.0.0 or above.\n\n","status":"published","published":"2021-04-13T15:15:57Z","modified":"2023-02-01T05:05:18Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:36:33.613868Z"}],"nvd":[{"id":"CVE-2021-27191","description":"The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.","status":"published","published":"2021-02-11T18:15:18.347Z","modified":"2026-06-17T03:44:26.293Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:50.031227Z"}],"osv":[{"id":"CVE-2021-27191","description":"The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.","status":"published","published":"2021-02-11T18:15:18.347Z","modified":"2026-10-20T10:54:35.299039054Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:18.778776Z"},{"id":"GHSA-6q4w-3wp4-q5wf","title":"Denial of Service in get-ip-range","description":"The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion. Update get-ip-range dependency to 4.0.0 or above.\n\n","status":"published","published":"2021-04-13T15:15:57Z","modified":"2023-11-08T04:05:23.815655Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:39.965326Z"}]}}