{"cve":"CVE-2014-6438","nvd":{"published":"2017-09-06T21:29:00.253","modified":"2026-06-17T00:13:06.613","status":"Modified","description":"The URI.decode_www_form_component method in Ruby before 1.9.2-p330 allows remote attackers to cause a denial of service (catastrophic regular expression backtracking, resource consumption, or application crash) via a crafted string.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-399"],"references":["http://www.openwall.com/lists/oss-security/2015/07/13/6","http://www.securitytracker.com/id/1032874","https://github.com/ruby/www.ruby-lang.org/issues/817","https://www.ruby-lang.org/en/news/2014/08/19/ruby-1-9-2-p330-released/","http://www.openwall.com/lists/oss-security/2015/07/13/6"],"products":["ruby-lang:ruby"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2014-6438","score":0.04128,"percentile":0.90821,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}