CVE-2024-21636

CVE-2024-21636 affects the ViewComponent framework for Ruby on Rails. Versions prior to 3.9.0 and 2.83.0 allow cross-site scripting when a component defines a #call method and returns unescaped content, and when #output_postamble also returns unescaped content. The vulnerability applies to render...

CVE-2026-54497

CVE-2026-54497 (ViewComponent, Ruby on Rails) : Affected through ViewComponent::Base from 4.0.0 to 4.11.x where render_in can retain render-scoped objects across invocations. Reusing the same component instance (or collection/spacer) across requests/threads can cause stale request context, helper...

CVE-2026-44837

ViewComponent CVE-2026-44837 affects Rails ViewComponent from 3.0.0 to 4.9.0. Root cause: system test entrypoint uses File.realpath and starts_with to check the path, which is not a safe containment check and allows potential sibling-directory escapes. Impact: could permit access to files outside...

CVE-2026-54498

CVE-2026-54498 affects ViewComponent (Ruby on Rails) where ViewComponent::Base#around_render can return HTML-unsafe strings, bypassing normal escaping and causing XSS. The issue is amplified when ViewComponent::Collection#render_in joins per-item results and marks the whole output html_safe, conv...