{"id":"CVE-2021-27191","aliases":["GHSA-6q4w-3wp4-q5wf"],"url":"https://o3.security/vulnerability/CVE-2021-27191","summary":"Denial of Service in get-ip-range","details":"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.","published":"2021-02-11T18:15:18.347Z","modified":"2026-07-08T06:01:09.098168789Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"get-ip-range","fixedVersion":"4.0.0"}],"fix":{"url":"https://github.com/JoeScho/get-ip-range/commit/98ca22b815c77273cbab259811ab0976118e13b6","label":"JoeScho/get-ip-range@98ca22b"},"references":[{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210319-0002/"},{"type":"ADVISORY","url":"https://www.npmjs.com/package/get-ip-range"},{"type":"FIX","url":"https://github.com/JoeScho/get-ip-range/commit/98ca22b815c77273cbab259811ab0976118e13b6"},{"type":"EVIDENCE","url":"https://advisory.checkmarx.net/advisory/CX-2021-4304"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:01:09.098168789Z"}}