{"id":"CVE-2023-22467","aliases":["GHSA-3xq5-wjfh-ppjc"],"url":"https://o3.security/vulnerability/CVE-2023-22467","summary":"luxon.js inefficient regular expression complexity vulnerability","details":"Luxon is a library for working with dates and times in JavaScript. On the 1.x branch prior to 1.38.1, the 2.x branch prior to 2.5.2, and the 3.x branch on 3.2.1, Luxon's `DateTime.fromRFC2822() has quadratic (N^2) complexity on some specific inputs. This causes a noticeable slowdown for inputs with lengths above 10k characters. Users providing untrusted data to this method are therefore vulnerable to (Re)DoS attacks. This issue also appears in Moment as CVE-2022-31129. Versions 1.38.1, 2.5.2, and 3.2.1 contain patches for this issue. As a workaround, limit the length of the input.","published":"2023-01-04T21:52:14.329Z","modified":"2026-08-12T03:51:35.185379312Z","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":0,"affectedPackages":[{"ecosystem":"npm","name":"luxon","fixedVersion":"1.28.1"},{"ecosystem":"npm","name":"luxon","fixedVersion":"2.5.2"},{"ecosystem":"npm","name":"luxon","fixedVersion":"3.2.1"}],"fix":{"url":"https://github.com/moment/luxon/commit/5ab3bf64a10da929a437629cdb2f059bb83212bf","label":"moment/luxon@5ab3bf6"},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/44I3WAJKYXDLOVYRGMHAUXMIV4SPFXDZ/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4LIVOASKBQH7FEUI5RWM3SOHR6VK7ZZR/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/22xxx/CVE-2023-22467.json"},{"type":"ADVISORY","url":"https://github.com/moment/luxon/security/advisories/GHSA-3xq5-wjfh-ppjc"},{"type":"ADVISORY","url":"https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-22467"},{"type":"FIX","url":"https://github.com/moment/luxon/commit/5ab3bf64a10da929a437629cdb2f059bb83212bf"},{"type":"FIX","url":"https://github.com/moment/moment/pull/6015#issuecomment-1152961973"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:35.185379312Z"}}