July 7, 2025 · Applied Cybernetics Group
CVE-2019-5418 — Rails Ruby on Rails
Rails Ruby on Rails Path Traversal Vulnerability
- Added to KEV
2025-07-07- Federal due date
2025-07-28- Vendor
- Rails
- Product
- Ruby on Rails
- EPSS
- 100.0th percentile (score 0.943, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2019-5418
CISA short description
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.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.