High
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-5419
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:12 UTC · Revision 1
Source evidence
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.
osv:CVE-2019-5419
Complete source record
{
"id": "25a68bba274a0e375edc512c4690b0a808e47c49c7a652ae3020b54396974a4e",
"url": "https://osv.dev/vulnerability/CVE-2019-5419",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-5419",
"summary": "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.",
"evidence": "osv:CVE-2019-5419",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-5419",
"aliases": [
"CVE-2019-5419",
"GHSA-m63j-wh5w-c252"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/rails/rails",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "e06a1e09b6bec32b0a05c72a3ae7ceb00f61bf7d"
},
{
"introduced": "2efddadd6cba4e2129acedf1d402d11abcc03996"
},
{
"fixed": "c4d3e202e10ae627b3b9c34498afb45450652421"
},
{
"introduced": "ce93740a5e4437dfc1cf9b0b13da1bad06a2a598"
},
{
"fixed": "ec8697bf0bfafff7d897fb50e322afe42ddc1623"
},
{
"introduced": "375a4143cf5caeb6159b338be824903edfd62836"
},
{
"fixed": "e69ff43060c1194d2a3bd9b8d9e23f3ae26b84b5"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "4.2.11.1"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.0.7.2"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.1.0"
},
{
"fixed": "5.1.6.2"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.2.0"
},
{
"fixed": "5.2.2.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v4.2.11",
"v5.0.7.1",
"v5.1.6.1",
"v5.2.2",
"v5.2.2.rc1",
"v5.0.7",
"v5.1.6",
"v5.2.1.rc1",
"v5.2.0.rc1",
"v4.2.10",
"v4.2.10.rc1",
"v5.1.4.rc1",
"v5.0.5",
"v5.0.5.rc2",
"v5.1.3.rc1",
"v5.0.5.rc1",
"v5.1.2.rc1",
"v5.0.4.rc1",
"v4.2.9.rc1",
"v5.0.3",
"v5.1.1",
"v5.1.0",
"v5.1.0.beta1",
"v4.2.7.rc1",
"v5.0.0.rc2",
"v5.0.0.rc1",
"v5.0.0.beta4",
"v5.0.0.beta2",
"v5.0.0.beta1",
"v4.2.5.rc1",
"v4.2.4.rc1",
"v4.2.0.rc1",
"v4.2.0.beta1",
"v4.0.0.rc1",
"v4.0.0.beta1",
"v3.2.0.rc1",
"v3.1.0.rc1",
"v3.1.0.beta1",
"v3.0.0.beta3",
"v3.0.0.beta.3",
"v2.0.1",
"v2.0.0",
"v2.0.0_RC2",
"v2.0.0_RC1",
"v2.0.0_PR",
"v1.1.1",
"v1.1.0",
"v1.1.0_RC1",
"v0.14.3",
"v0.14.1",
"v0.13.1",
"v0.13.0",
"v0.12.0",
"v0.11.1",
"v0.11.0",
"v0.10.1",
"v0.10.0",
"v0.9.5",
"v0.9.4.1",
"v0.9.4",
"v0.9.3",
"v0.9.2",
"v0.9.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-5419.json"
}
}
],
"modified": "2026-10-24T10:30:25.660524378Z",
"provider": "osv",
"references": [
"https://groups.google.com/forum/#%21topic/rubyonrails-security/GN7w9fFAQeI",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJTRFJAAYGA/",
"https://access.redhat.com/errata/RHSA-2019:0796",
"https://access.redhat.com/errata/RHSA-2019:1147",
"https://access.redhat.com/errata/RHSA-2019:1149",
"https://access.redhat.com/errata/RHSA-2019:1289",
"https://lists.debian.org/debian-lts-announce/2019/03/msg00042.html",
"https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "30"
},
{
"last_affected": "30"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.0"
},
{
"last_affected": "15.0"
},
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:redhat:cloudforms:4.6:*:*:*:*:*:*:*",
"cpe:2.3:a:redhat:cloudforms:4.7:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:cloudforms",
"extracted_events": [
{
"range": [
{
"introduced": "4.6"
},
{
"last_affected": "4.6"
},
{
"introduced": "4.7"
},
{
"last_affected": "4.7"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:software_collections",
"extracted_events": [
{
"range": [
{
"introduced": "1.0"
},
{
"last_affected": "1.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-5419",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431414,
"published_at": "2019-03-27T14:29:01.657+00:00"
}