CVE-2019-5418

CRITICALNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-07-07), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Exploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 99%CVSS: 7.5Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
96(Attend)
EG Risk 96/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
99%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

March 27, 2019

Last Modified

October 30, 2025

Advisory Details (8)

Auto-updated Jun 6, 2026
Patch available. Sources: redhat.
generic

[SECURITY] Fedora 30 Update: rubygem-activemodel-5.2.3-2.fc30 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y43636TH4D6T46IC6N2RQVJTRFJAAYGA/
generic Patch Available

[SECURITY] [DLA 1739-1] rails security update

https://lists.debian.org/debian-lts-announce/2019/03/msg00042.html
generic

Redirecting to Google Groups

https://groups.google.com/forum/#%21topic/rubyonrails-security/pFRKI96Sm8Q
redhat Patch Available
https://access.redhat.com/errata/RHSA-2019:1289
redhat Patch Available
https://access.redhat.com/errata/RHSA-2019:1149
redhat Patch Available
https://access.redhat.com/errata/RHSA-2019:1147
redhat Patch Available
https://access.redhat.com/errata/RHSA-2019:0796
generic

oss-security - [CVE-2019-5418] Amendment: Possible Remote Code Execution Exploit in Action View

http://www.openwall.com/lists/oss-security/2019/03/22/1

Vendor Advisories for CVE-2019-5418(4)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubunturuby-railties (2:4.2.6-1ubuntu0.1~esm2) @ xenial2026-09-19ubuntu
redhatcfme-gemset-0:5.9.9.3-1.el7cf2019-05-29redhat
redhatrh-ror50-rubygem-actionpack-1:5.0.1-2.el72019-05-13redhat
redhatrh-ror42-rubygem-actionpack-1:4.2.6-5.el72019-05-13redhat
redhatcfme-gemset-0:5.10.3.3-1.el7cf2019-04-23redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(6 across 6 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
rails—2:5.2.2.1+dfsg-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
rails—2:5.2.2.1+dfsg-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
rails—2:5.2.2.1+dfsg-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
rails—2:5.2.2.1+dfsg-1—
Debian:8(1)
PackageVulnerable rangeFixed inDependents
rails2:4.1.8-1, 2:4.1.8-1+deb8u1, 2:4.1.8-1+deb8u2, 2:4.1.8-1+deb8u3, 2:4.1.8-1+deb8u42:4.1.8-1+deb8u5—
RubyGems(1)
PackageVulnerable rangeFixed inDependents
actionview5.0.0 ... 5.0.7.1 (17 versions)5.0.7.2—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 43× in last 7d / 187× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 678 total refreshes for this CVE.

  1. 2026-09-19 11:23 UTCVendor advisory
  2. 2026-09-19 06:59 UTCVendor advisory
  3. 2026-09-19 02:35 UTCVendor advisory
  4. 2026-09-18 22:10 UTCVendor advisory
  5. 2026-09-18 19:20 UTCCISA KEV update
  6. 2026-09-18 17:46 UTCVendor advisory
  7. 2026-09-18 14:15 UTCCISA KEV update
  8. 2026-09-18 13:22 UTCVendor advisory
  9. 2026-09-18 08:58 UTCVendor advisory
  10. 2026-09-18 04:34 UTCVendor advisory
  11. 2026-09-18 00:10 UTCVendor advisory
  12. 2026-09-17 19:46 UTCVendor advisory
  13. 2026-09-17 15:22 UTCVendor advisory
  14. 2026-09-17 10:58 UTCVendor advisory
  15. 2026-09-17 06:33 UTCVendor advisory
  16. 2026-09-17 02:06 UTCVendor advisory
  17. 2026-09-16 21:42 UTCVendor advisory
  18. 2026-09-16 17:18 UTCVendor advisory
  19. 2026-09-16 14:10 UTCCISA KEV update
  20. 2026-09-16 12:49 UTCVendor advisory
  21. 2026-09-16 08:25 UTCVendor advisory
  22. 2026-09-16 03:56 UTCVendor advisory
  23. 2026-09-15 23:32 UTCVendor advisory
  24. 2026-09-15 19:07 UTCVendor advisory
  25. 2026-09-15 14:43 UTCVendor advisory
Show 75 more
  1. 2026-09-15 10:19 UTCVendor advisory
  2. 2026-09-15 05:54 UTCVendor advisory
  3. 2026-09-15 01:29 UTCVendor advisory
  4. 2026-09-14 21:05 UTCVendor advisory
  5. 2026-09-14 19:24 UTCCISA KEV update
  6. 2026-09-14 16:41 UTCVendor advisory
  7. 2026-09-14 12:17 UTCVendor advisory
  8. 2026-09-14 07:53 UTCVendor advisory
  9. 2026-09-14 03:29 UTCVendor advisory
  10. 2026-09-13 23:05 UTCVendor advisory
  11. 2026-09-13 18:41 UTCVendor advisory
  12. 2026-09-13 14:17 UTCVendor advisory
  13. 2026-09-13 09:53 UTCVendor advisory
  14. 2026-09-13 05:29 UTCVendor advisory
  15. 2026-09-13 01:05 UTCVendor advisory
  16. 2026-09-12 20:41 UTCVendor advisory
  17. 2026-09-12 16:17 UTCVendor advisory
  18. 2026-09-12 11:53 UTCVendor advisory
  19. 2026-09-12 07:29 UTCVendor advisory
  20. 2026-09-12 03:05 UTCVendor advisory
  21. 2026-09-11 22:40 UTCVendor advisory
  22. 2026-09-11 18:49 UTCCISA KEV update
  23. 2026-09-11 18:15 UTCVendor advisory
  24. 2026-09-11 13:50 UTCEG score recompute
  25. 2026-09-11 13:50 UTCVendor advisory
  26. 2026-09-11 09:32 UTCEPSS rescore
  27. 2026-09-11 09:26 UTCVendor advisory
  28. 2026-09-11 05:02 UTCVendor advisory
  29. 2026-09-11 00:38 UTCVendor advisory
  30. 2026-09-10 20:14 UTCVendor advisory
  31. 2026-09-10 19:28 UTCCISA KEV update
  32. 2026-09-10 15:50 UTCVendor advisory
  33. 2026-09-10 11:25 UTCVendor advisory
  34. 2026-09-10 07:01 UTCVendor advisory
  35. 2026-09-10 02:37 UTCVendor advisory
  36. 2026-09-09 22:13 UTCVendor advisory
  37. 2026-09-09 19:08 UTCCISA KEV update
  38. 2026-09-09 17:46 UTCVendor advisory
  39. 2026-09-09 13:22 UTCVendor advisory
  40. 2026-09-09 08:55 UTCVendor advisory
  41. 2026-09-09 04:30 UTCVendor advisory
  42. 2026-09-09 00:06 UTCVendor advisory
  43. 2026-09-08 19:42 UTCVendor advisory
  44. 2026-09-08 18:54 UTCCISA KEV update
  45. 2026-09-08 15:18 UTCVendor advisory
  46. 2026-09-08 10:53 UTCVendor advisory
  47. 2026-09-08 06:25 UTCVendor advisory
  48. 2026-09-08 02:00 UTCVendor advisory
  49. 2026-09-07 21:36 UTCVendor advisory
  50. 2026-09-07 17:12 UTCVendor advisory
  51. 2026-09-07 12:48 UTCVendor advisory
  52. 2026-09-07 08:20 UTCVendor advisory
  53. 2026-09-07 03:54 UTCVendor advisory
  54. 2026-09-06 23:30 UTCVendor advisory
  55. 2026-09-06 19:06 UTCVendor advisory
  56. 2026-09-06 14:40 UTCVendor advisory
  57. 2026-09-06 10:16 UTCVendor advisory
  58. 2026-09-06 05:52 UTCVendor advisory
  59. 2026-09-06 01:28 UTCVendor advisory
  60. 2026-09-05 21:04 UTCVendor advisory
  61. 2026-09-05 16:40 UTCVendor advisory
  62. 2026-09-05 12:16 UTCVendor advisory
  63. 2026-09-05 07:52 UTCVendor advisory
  64. 2026-09-05 03:28 UTCVendor advisory
  65. 2026-09-04 23:04 UTCVendor advisory
  66. 2026-09-04 18:36 UTCVendor advisory
  67. 2026-09-04 17:38 UTCCISA KEV update
  68. 2026-09-04 14:10 UTCVendor advisory
  69. 2026-09-04 09:46 UTCVendor advisory
  70. 2026-09-04 05:22 UTCVendor advisory
  71. 2026-09-04 00:57 UTCVendor advisory
  72. 2026-09-03 20:33 UTCVendor advisory
  73. 2026-09-03 16:08 UTCVendor advisory
  74. 2026-09-03 11:44 UTCVendor advisory
  75. 2026-09-03 07:16 UTCVendor advisory

Publicly available exploits

(10 references)

Working exploit code is in the public domain (1 Metasploit module) (7 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCkailing0220/CVE-2019-5418
    First seen Oct 17, 2022

    Ruby on Rails是一个 Web 应用程序框架,是一个相对较新的 Web 应用程序框架，构建在 Ruby 语言之上。这个漏洞主要是由于Ruby on Rails使用了指定参数的render file来渲染应用之外的视图，我们可以通过修改访问某控制器的请求包，通过“…/…/…/…/”来达到路径穿越的目的，然后再通过“{{”来进行模板查询路径的闭合，使得所要访问的文件被当做外部模板来解析。

    Open source ↗
  • GitHub PoCrandom-robbie/CVE-2019-5418
    First seen Nov 19, 2019
    Open source ↗
  • GitHub PoCBad3r/RailroadBandit
    First seen Apr 1, 2019

    a demo for Ruby on Rails CVE-2019-5418

    Open source ↗
  • GitHub PoCmpgn/Rails-doubletap-RCE
    First seen Mar 23, 2019

    RCE on Rails 5.2.2 using a path traversal (CVE-2019-5418) and a deserialization of Ruby objects (CVE-2019-5420)

    Open source ↗
  • Exploit-DBEDB-46585
    First seen Mar 21, 2019

    Rails 5.2.1 - Arbitrary File Content Disclosure

    Open source ↗
  • GitHub PoCbrompwnie/CVE-2019-5418-Scanner
    First seen Mar 19, 2019

    A multi-threaded Golang scanner to identify Ruby endpoints vulnerable to CVE-2019-5418

    Open source ↗
  • GitHub PoComarkurt/CVE-2019-5418
    First seen Mar 18, 2019

    File Content Disclosure on Rails Test Case - CVE-2019-5418

    Open source ↗
  • GitHub PoCmpgn/CVE-2019-5418
    First seen Mar 16, 2019

    CVE-2019-5418 - File Content Disclosure on Ruby on Rails

    Open source ↗
  • Metasploitauxiliary/gather/rails_doubletap_file_read✓ verified
    First seen Jan 1, 2019

    Ruby On Rails File Content Disclosure ('doubletap')

    Open source ↗
  • Nucleihttp/cves/2019/CVE-2019-5418.yaml
    First seen Jan 1, 2019

    Rails File Content Disclosure

    Open source ↗

Frequently asked(6)

What is CVE-2019-5418?
CVE-2019-5418 is a critical vulnerability published on March 27, 2019. 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.
When was CVE-2019-5418 disclosed?
CVE-2019-5418 was first published in the National Vulnerability Database on March 27, 2019, with the most recent update on October 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-5418 actively exploited?
Yes. CISA added CVE-2019-5418 to the Known Exploited Vulnerabilities catalog on July 7, 2025, affecting Rails Ruby on Rails. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2019-5418?
CVE-2019-5418 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2019-5418?
CVE-2019-5418 affects Rails Ruby on Rails. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2019-5418?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-5418, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-5418

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