Overview
Rails Ruby on Rails contains a path traversal vulnerability in Action View. Specially crafted accept headers in combination with calls to render file: can cause arbitrary files on the target server to be rendered, disclosing the file contents.
https://web.archive.org/web/20190313201629/https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/ ; https://nvd.nist.gov/vuln/detail/CVE-2019-5418
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2019-5418 |
| Vendor / Product | Rails — Ruby on Rails |
| NVD Published | 2019-03-27 |
| NVD Last Modified | 2025-10-30 |
| CVSS 3.1 Score | 7.5 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Severity | HIGH |
| CWE | CWE-22 |
| CISA KEV Added | 2025-07-07 |
| CISA KEV Deadline | 2025-07-28 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Required Action
CISA BOD 22-01 Deadline: 2025-07-28.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2025-07-07 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2025-07-28 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2019-5418 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |