Detections
Analytics
CVE-2026-44837
medium
Description
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.
References
https://github.com/ViewComponent/view_component/security/advisories/GHSA-hg3h-g7xc-f7vp