{"cve":"CVE-2014-8090","nvd":{"published":"2014-11-21T15:59:04.243","modified":"2026-06-17T00:16:13.157","status":"Modified","description":"The REXML parser in Ruby 1.9.x before 1.9.3 patchlevel 551, 2.0.x before 2.0.0 patchlevel 598, and 2.1.x before 2.1.5 allows remote attackers to cause a denial of service (CPU and memory consumption) a crafted XML document containing an empty string in an entity that is used in a large number of nested entity references, aka an XML Entity Expansion (XEE) attack.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-1821 and CVE-2014-8080.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://advisories.mageia.org/MGASA-2014-0472.html","http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html","http://lists.opensuse.org/opensuse-updates/2014-12/msg00035.html","http://lists.opensuse.org/opensuse-updates/2015-01/msg00000.html","http://lists.opensuse.org/opensuse-updates/2015-01/msg00004.html"],"products":["ruby-lang:ruby"],"source":"nvd","synced_at":"2026-10-19T20:34:45.729216538+00:00"},"epss":{"cve":"CVE-2014-8090","score":0.05708,"percentile":0.93021,"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."]}