{"id":"JLSEC-2026-1287","details":"Date.parse in the date gem through 3.2.0 for Ruby allows ReDoS (regular expression Denial of Service) via a long string. The fixed versions are 3.2.1, 3.1.2, 3.0.2, and 2.0.1.","modified":"2026-08-13T10:00:06.204343312Z","published":"2026-08-13T09:49:53.975Z","upstream":["CVE-2021-41817"],"database_specific":{"sources":[{"database_specific":{"status":"Modified"},"id":"CVE-2021-41817","imported":"2026-08-12T15:35:15.447Z","modified":"2026-06-17T04:08:57.443Z","published":"2022-01-01T05:15:08.197Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-41817","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41817"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://hackerone.com/reports/1254844"},{"type":"WEB","url":"https://hackerone.com/reports/1254844"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202401-27"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202401-27"},{"type":"WEB","url":"https://www.ruby-lang.org/en/news/2021/11/15/date-parsing-method-regexp-dos-cve-2021-41817/"},{"type":"WEB","url":"https://www.ruby-lang.org/en/news/2021/11/15/date-parsing-method-regexp-dos-cve-2021-41817/"}],"affected":[{"package":{"name":"ruby_jll","ecosystem":"Julia","purl":"pkg:julia/ruby_jll?uuid=3ea333e9-fd8a-53ca-adba-366e8551b7d5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1287.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V2","score":"AV:N/AC:L/Au:N/C:N/I:N/A:P"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}