CASCACascade Atlas

Evidence dossier

CVE-2019-5418

CVE-2019-5418

72.4–93.6Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

There is a File Content Disclosure vulnerability in Action View <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 and v3 where specially crafted accept headers can cause contents of arbitrary files on the target system's filesystem to be exposed.

State
PUBLISHED
Published
Mar 27, 2019
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS98.51%

2026-07-18 · v2026.06.15 · percentile 99.9%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

hackeroneoriginal assertion
container

There is a File Content Disclosure vulnerability in Action View <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 and v3 where specially crafted accept headers can cause contents of arbitrary files on the target system's filesystem to be exposed.

CISA KEVoriginal assertion
observed_exploitation

Rails Ruby on Rails Path Traversal Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.985070000000; percentile 0.999150000000

Applicability

Cited product scope

Trace impact →
Railshttps://github.com/rails/rails
[{"status": "affected", "version": "5.2.2.1"}, {"status": "affected", "version": "5.1.6.2"}, {"status": "affected", "version": "5.0.7.2"}, {"status": "affected", "version": "4.2.11.1"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:redhat:cloudforms:4.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:cloudforms:4.7:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*; start including 3.0.0; end excluding 4.2.11.1supported
Unknown vendorUnknown product
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*; start including 5.0.0; end excluding 5.0.7.2supported
Unknown vendorUnknown product
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*; start including 5.1.0; end excluding 5.1.6.2supported
Unknown vendorUnknown product
cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*; start including 5.2.0; end excluding 5.2.2.1supported
Unknown vendorUnknown product
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

7.5
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.