Viewcomponent: community verdicts

1 notable / known-exploited Viewcomponent CVE the community has triaged.

ⓘ Not an exhaustive list: we focus on the findings that matter (exploited / notable). For every Viewcomponent CVE, see NVD ↗.

CVE-2026-44837MED 5.9EPSS 0%
view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 3.0.0 to 4.9.0, the system test entrypoint canonicalizes a user-controlled file path with File.realpath, then checks whether the resolved path starts with the temp directory path. This is not a safe containment check because sibling directories can share the same string prefix. This vulnerability is fixed in 4.9.0.