{"cve":"CVE-2022-44570","nvd":{"published":"2023-02-09T20:15:11.090","modified":"2026-06-17T05:08:32.500","status":"Modified","description":"A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0. A Carefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be impacted.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-1333","CWE-400"],"references":["https://discuss.rubyonrails.org/t/cve-2022-44570-possible-denial-of-service-vulnerability-in-racks-range-header-parsing/82125","https://security.netapp.com/advisory/ntap-20231208-0010/","https://www.debian.org/security/2023/dsa-5530","https://discuss.rubyonrails.org/t/cve-2022-44570-possible-denial-of-service-vulnerability-in-racks-range-header-parsing/82125","https://security.netapp.com/advisory/ntap-20231208-0010/"],"products":["rack:rack"],"source":"nvd","synced_at":"2026-10-19T21:37:38.595364862+00:00"},"epss":{"cve":"CVE-2022-44570","score":0.01626,"percentile":0.76167,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-65f5-mfpf-vfhj","url":"https://osv.dev/vulnerability/GHSA-65f5-mfpf-vfhj","summary":"Denial of service via header parsing in Rack","modified":"2025-02-13T19:05:53.024751Z","packages":[{"ecosystem":"RubyGems","name":"rack","purl":"pkg:gem/rack","ranges":[">=1.5.0 <2.0.9.2"],"fixed":["2.0.9.2"]},{"ecosystem":"RubyGems","name":"rack","purl":"pkg:gem/rack","ranges":[">=2.1.0.0 <2.1.4.2"],"fixed":["2.1.4.2"]},{"ecosystem":"RubyGems","name":"rack","purl":"pkg:gem/rack","ranges":[">=2.2.0.0 <2.2.6.2"],"fixed":["2.2.6.2"]},{"ecosystem":"RubyGems","name":"rack","purl":"pkg:gem/rack","ranges":[">=3.0.0.0 <3.0.4.1"],"fixed":["3.0.4.1"]}]}],"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."]}