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Vulnerability record · CVE-2019-5419 · published 27 March 2019

CVE-2019-5419: Rubyonrails rails uncontrolled resource consumption vulnerability

Rubyonrails · Rails

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.

7.5 CVSS 3.1 High EPSS 8.7% · top 5.1% CWE-400 · Uncontrolled resource consumptionCWE-770 · Allocation without limits
7.5CVSS 3.1 base score, v2 7.8
8.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
24References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00011.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00025.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00001.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/03/22/1 ExploitMailing ListMitigationPatchThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:0796 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1147 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1149 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1289 Third Party Advisory
https://groups.google.com/forum/#%21topic/rubyonrails-security/GN7w9fFAQeI
https://lists.debian.org/debian-lts-announce/2019/03/msg00042.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJ
https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/ PatchThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00011.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00025.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00001.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/03/22/1 ExploitMailing ListMitigationPatchThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:0796 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1147 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1149 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1289 Third Party Advisory
https://groups.google.com/forum/#%21topic/rubyonrails-security/GN7w9fFAQeI
https://lists.debian.org/debian-lts-announce/2019/03/msg00042.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJ
https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/ PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-5419), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.