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.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/ViewComponent/view_component/commit/6796b2e89d0bd7b9d7d763a86275e5334731dd61	Patch
https://github.com/ViewComponent/view_component/releases/tag/v4.12.0	Product Release Notes
https://github.com/ViewComponent/view_component/security/advisories/GHSA-9h85-g7w3-rh49	Exploit Mitigation Vendor Advisory
https://github.com/ViewComponent/view_component/security/advisories/GHSA-9h85-g7w3-rh49	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:viewcomponent:view_component:*:*:*:*:*:ruby:*:*

History

No history.

Information

Published : 2026-07-17 21:17

Updated : 2026-07-29 15:43

NVD link : CVE-2026-54497

Mitre link : CVE-2026-54497

CVE.ORG link : CVE-2026-54497

JSON object : View

Products Affected

viewcomponent

view_component

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-488

Exposure of Data Element to Wrong Session

CWE-668

Exposure of Resource to Wrong Sphere

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