{"id":"CVE-2017-6181","aliases":["EUVD-2017-15246","GHSA-5pfp-rwpx-xgfx"],"status":"published","title":"The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression...","description":"The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.03647,"percentile":0.89661,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2017-04-03T05:44:00Z","modified":"2026-10-24T10:30:58Z","products":[{"vendor":"ruby-lang","product":"ruby"}],"references":[{"url":"https://bugs.ruby-lang.org/issues/13234","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Vendor Advisory","report"]},{"url":"https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Vendor Advisory","report"]},{"url":"http://www.securityfocus.com/bid/97304","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-6181"},{"url":"https://github.com/advisories/GHSA-5pfp-rwpx-xgfx"}],"sources":{"cve":[{"id":"CVE-2017-6181","description":"The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.","status":"published","published":"2017-04-03T05:44:00Z","modified":"2024-08-05T15:25:47.726Z","updated_at":"2026-11-02T14:33:16.916541Z"}],"euvd":[{"id":"EUVD-2017-15246","description":"The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.","status":"published","published":"2017-04-03T05:44:00Z","modified":"2024-08-05T15:25:47Z","updated_at":"2026-11-03T02:39:13.005576Z"}],"ghsa":[{"id":"GHSA-5pfp-rwpx-xgfx","title":"The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression...","description":"The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.","status":"published","published":"2022-05-17T02:50:57Z","modified":"2023-01-27T05:06:35Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:42:56.687968Z"}],"nvd":[{"id":"CVE-2017-6181","description":"The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.","status":"published","published":"2017-04-03T05:59:00.847Z","modified":"2026-06-17T01:21:53.807Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/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"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:44.86906Z"}],"osv":[{"id":"CVE-2017-6181","description":"The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.","status":"published","published":"2017-04-03T05:59:00.847Z","modified":"2026-10-24T10:30:58.034936806Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:06.029968Z"}]}}