# CVE-2026-54497

## Summary

- **CVE ID:** CVE-2026-54497
- **Severity:** MEDIUM
- **CVSS Score:** 6.8 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N)
- **CWE:** CWE-362, CWE-488, CWE-668
- **Published:** Jul 17, 2026
- **Last Modified:** Jul 20, 2026

## Description

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.

## Affected Products

- ViewComponent — view_component (>= 4.0.0, < 4.12.0)

## References

- [CNA](https://github.com/ViewComponent/view_component/security/advisories/GHSA-9h85-g7w3-rh49)
- [CNA](https://github.com/ViewComponent/view_component/commit/6796b2e89d0bd7b9d7d763a86275e5334731dd61)
- [CNA](https://github.com/ViewComponent/view_component/releases/tag/v4.12.0)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.25%
- **EPSS Percentile:** 16.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._