{"id":"CVE-2019-5419","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-5419","generatedAt":"2026-10-27T23:27:07.270Z","title":"There is a possible denial of service vulnerability in Action View (Rails) <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 where specially crafted accept headers can cause action view to consume 100% cpu and make the server unresponsive.","description":"There is a possible denial of service vulnerability in Action View (Rails) <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 where specially crafted accept headers can cause action view to consume 100% cpu and make the server unresponsive.","published":"2019-03-27T14:29:02.000Z","lastModified":"2026-06-17T02:37:39.000Z","status":"Modified","sourceIdentifier":"support@hackerone.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400","CWE-770"],"affected":["rubyonrails/rails","debian/debian linux","redhat/cloudforms","redhat/software collections","opensuse/leap","fedoraproject/fedora"],"epss":{"score":0.08778,"percentile":0.95138,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (8.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00011.html","tags":["Mailing List","Third Party Advisory"],"source":"support@hackerone.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00025.html","tags":["Mailing List","Third Party Advisory"],"source":"support@hackerone.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00001.html","tags":["Mailing List","Third Party Advisory"],"source":"support@hackerone.com"},{"url":"http://www.openwall.com/lists/oss-security/2019/03/22/1","tags":["Exploit","Mailing List","Mitigation","Patch","Third Party Advisory"],"source":"support@hackerone.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:0796","tags":["Third Party Advisory"],"source":"support@hackerone.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:1147","tags":["Third Party Advisory"],"source":"support@hackerone.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:1149","tags":["Third Party Advisory"],"source":"support@hackerone.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:1289","tags":["Third Party Advisory"],"source":"support@hackerone.com"},{"url":"https://groups.google.com/forum/#%21topic/rubyonrails-security/GN7w9fFAQeI","source":"support@hackerone.com"},{"url":"https://lists.debian.org/debian-lts-announce/2019/03/msg00042.html","tags":["Mailing List","Third Party Advisory"],"source":"support@hackerone.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJTRFJAAYGA/","source":"support@hackerone.com"},{"url":"https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/","tags":["Patch","Third Party Advisory"],"source":"support@hackerone.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00011.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00025.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00001.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2019/03/22/1","tags":["Exploit","Mailing List","Mitigation","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:0796","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:1147","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:1149","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:1289","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://groups.google.com/forum/#%21topic/rubyonrails-security/GN7w9fFAQeI","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/03/msg00042.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJTRFJAAYGA/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-5419","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}