CVE-2026-54497

view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 4.0.0 until 4.12.0, ViewComponent::Base instances retain render-scoped objects across calls to render_in; if the same component, collection, or spacer component instance is reused across requests, users, tenants, or threads, later renders can use stale helpers, controller, request, view_flow, format/variant details, and slot child context from an earlier render. This can cause authorization-aware components to render privileged UI for a lower-privileged user, generate links using a stale Host header, leak slot/helper state, and mix request context under concurrent rendering. This issue is fixed in version 4.12.0.

• CWE-362
• CWE-488
• CWE-668

• https://github.com/ViewComponent/view_component/commit/6796b2e89d0bd7b9d7d763a86275e5334731dd61Patch
• https://github.com/ViewComponent/view_component/releases/tag/v4.12.0Product, Release Notes
• https://github.com/ViewComponent/view_component/security/advisories/GHSA-9h85-g7w3-rh49Exploit, Mitigation, Vendor Advisory
• https://github.com/ViewComponent/view_component/security/advisories/GHSA-9h85-g7w3-rh49Exploit, Mitigation, Vendor Advisory

Published

Jul 17, 2026

Last Modified

Jul 29, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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