Vulnerability in ViewComponent Framework for Ruby on Rails Affecting Multiple Versions
CVE-2026-44836

6.5MEDIUM

Key Information:

Vendor

Viewcomponent

Status
View Component
Vendor
CVE Published:
26 May 2026

What is CVE-2026-44836?

A vulnerability exists in the ViewComponent framework from versions 3.0.0 to 4.9.0, where the preview route improperly derives example names from the URL and utilizes public_send to invoke them. This results in inherited public methods on the ViewComponent::Preview class being accessible through routes. Among these methods, render_with_template can accept parameters derived directly from requests, potentially allowing malicious users to render internal Rails templates that should not be accessible, thereby exposing sensitive application content.

Affected Version(s)

view_component >= 3.0.0, < 4.9.0

References

https://github.com/ViewComponent/view_component/security/...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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