{"id":"CVE-2021-3803","aliases":["GHSA-rp65-9cf3-cjxr"],"url":"https://o3.security/vulnerability/CVE-2021-3803","summary":"Inefficient Regular Expression Complexity in nth-check","details":"nth-check is vulnerable to Inefficient Regular Expression Complexity","published":"2021-09-17T07:15:09.153Z","modified":"2026-07-08T18:29:37.036246148Z","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":1,"affectedPackages":[{"ecosystem":"npm","name":"nth-check","fixedVersion":"2.0.1"}],"fix":{"url":"https://github.com/fb55/nth-check/commit/9894c1d2010870c351f66c6f6efcf656e26bb726","label":"fb55/nth-check@9894c1d"},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00023.html"},{"type":"FIX","url":"https://github.com/fb55/nth-check/commit/9894c1d2010870c351f66c6f6efcf656e26bb726"},{"type":"FIX","url":"https://huntr.dev/bounties/8cf8cc06-d2cf-4b4e-b42c-99fafb0b04d0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T18:29:37.036246148Z"}}