{"cve":"CVE-2024-47887","nvd":{"published":"2024-10-16T20:15:06.600","modified":"2026-06-17T07:57:55.433","status":"Deferred","description":"Action Pack is a framework for handling and responding to web requests. Starting in version 4.0.0 and prior to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, and 7.2.1.1, there is a possible ReDoS vulnerability in Action Controller's HTTP Token authentication. For applications using HTTP Token authentication via `authenticate_or_request_with_http_token` or similar, a carefully crafted header may cause header parsing to take an unexpected amount of time, possibly resulting in a DoS vulnerability. All users running an affected release should either upgrade to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, or 7.2.1.1 or apply the relevant patch immediately. One may choose to use Ruby 3.2 as a workaround.Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Rails 8.0.0.beta1 depends on Ruby 3.2 or greater so is unaffected.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","score":6.6},"cvss_v3":null,"cwes":["CWE-1333"],"references":["https://github.com/rails/rails/commit/56b2fc3302836405b496e196a8d5fc0195e55049","https://github.com/rails/rails/commit/7c1398854d51f9bb193fb79f226647351133d08a","https://github.com/rails/rails/commit/8e057db25bff1dc7a98e9ae72e0083825b9ac545","https://github.com/rails/rails/commit/f4dc83d8926509d0958ec21fcdbc2e7df3d32ce2","https://github.com/rails/rails/security/advisories/GHSA-vfg9-r3fq-jvx4"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:55:31.737901711+00:00"},"epss":{"cve":"CVE-2024-47887","score":0.01041,"percentile":0.64034,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vfg9-r3fq-jvx4","url":"https://osv.dev/vulnerability/GHSA-vfg9-r3fq-jvx4","summary":"Possible ReDoS vulnerability in HTTP Token authentication in Action Controller","modified":"2024-10-31T19:49:07.327172Z","packages":[{"ecosystem":"RubyGems","name":"actionpack","purl":"pkg:gem/actionpack","ranges":[">=4.0.0 <6.1.7.9"],"fixed":["6.1.7.9"]},{"ecosystem":"RubyGems","name":"actionpack","purl":"pkg:gem/actionpack","ranges":[">=7.0.0 <7.0.8.5"],"fixed":["7.0.8.5"]},{"ecosystem":"RubyGems","name":"actionpack","purl":"pkg:gem/actionpack","ranges":[">=7.1.0 <7.1.4.1"],"fixed":["7.1.4.1"]},{"ecosystem":"RubyGems","name":"actionpack","purl":"pkg:gem/actionpack","ranges":[">=7.2.0 <7.2.1.1"],"fixed":["7.2.1.1"]}]}],"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."]}