Answer in brief
CVE-2019-5418 records a High severity (CVSS 7.5) vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps Rails/https://github.com/rails/rails (generic), actionview (rubygems), actionview (rubygems), actionview (rubygems) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Rails/https://github.com/rails/rails (generic), actionview (rubygems), actionview (rubygems), actionview (rubygems) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Rails/https://github.com/rails/railsgeneric | 5.2.2.1 || 5.1.6.2 || 5.0.7.2 || 4.2.11.1 | Not reported |
| actionviewrubygems | >=5.2.0 <5.2.2.1 | 5.2.2.1 |
| actionviewrubygems | >=4.0.0 <4.2.11.1 | 4.2.11.1 |
| actionviewrubygems | >=5.1.0 <5.1.6.2 | 5.1.6.2 |
| actionviewrubygems | >=5.0.0 <5.0.7.2 | 5.0.7.2 |
Published upstream
Mar 27, 2019
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 22, 2025
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Jul 7, 2025
Evidence: source:kev:kev:kev:recordThere 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.
Quoted source text, attributed separately from HOL analysis.