{"cve":"CVE-2012-6109","nvd":{"published":"2013-03-01T05:40:16.863","modified":"2026-06-16T23:47:50.590","status":"Modified","description":"lib/rack/multipart.rb in Rack before 1.1.4, 1.2.x before 1.2.6, 1.3.x before 1.3.7, and 1.4.x before 1.4.2 uses an incorrect regular expression, which allows remote attackers to cause a denial of service (infinite loop) via a crafted Content-Disposion header.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://rack.github.com/","http://rhn.redhat.com/errata/RHSA-2013-0544.html","http://rhn.redhat.com/errata/RHSA-2013-0548.html","https://bugzilla.redhat.com/show_bug.cgi?id=895277","https://github.com/rack/rack/blob/master/README.rdoc"],"products":["rack_project:rack"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2012-6109","score":0.02717,"percentile":0.86022,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-h77x-m5q8-c29h","url":"https://osv.dev/vulnerability/GHSA-h77x-m5q8-c29h","summary":"Rack vulnerable to REDoS","modified":"2024-11-29T05:40:18.610572Z","packages":[{"ecosystem":"RubyGems","name":"rack","purl":"pkg:gem/rack","ranges":["<1.1.4"],"fixed":["1.1.4"]},{"ecosystem":"RubyGems","name":"rack","purl":"pkg:gem/rack","ranges":[">=1.2.0 <1.2.6"],"fixed":["1.2.6"]},{"ecosystem":"RubyGems","name":"rack","purl":"pkg:gem/rack","ranges":[">=1.3.0 <1.3.7"],"fixed":["1.3.7"]},{"ecosystem":"RubyGems","name":"rack","purl":"pkg:gem/rack","ranges":[">=1.4.0 <1.4.2"],"fixed":["1.4.2"]}]}],"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."]}