CVE-2026-44836

Description

view_component: Preview Route Can Dispatch Inherited Helper Methods

Overview

State

—

Assigner (CNA)

—

CVSS severity

medium

CVSS score

6.5 / 10

CVSS vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Effective score

6.5 / 10 MEDIUM source: CNA overview

CWE(s)

—

Reserved

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2026-44836

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2026-31972

Assigner

GitHub_M

Published

May 26, 2026, 7:43:58 PM

Updated

May 27, 2026, 1:21:54 PM

EUVD base score (CVSS 3.1)

6.5 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EUVD-reported EPSS

0.3400

Vendors

ViewComponent

Products

view_component (3.0.0, < 4.9.0)

Aliases

GHSA-7f3r-gwc9-2995

ENISA description: view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 3.0.0 to 4.9.0, the preview route derives an example name from the URL and calls it with public_send. The code does not verify that the requested method is one of the preview examples explicitly defined by the preview class. As a result, inherited public methods on ViewComponent::Preview are route-reachable. The most important one is render_with_template, which accepts template: and locals:. Those values can come from request params and are later passed to Rails as render template:. If previews are exposed, an attacker can render internal Rails templates that are not otherwise routable. This vulnerability is fixed in 4.9.0.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (4)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://github.com/ViewComponent/view_component/security/advisories/GHSA-7f3r-gwc9-2995 tenable:github.com
• https://www.first.org/epss/ tenable:www.first.org
• https://nvd.nist.gov/vuln/detail/CVE-2026-44836 tenable:nvd.nist.gov
• https://www.cve.org/CVERecord?id=CVE-2026-44836 tenable:www.cve.org

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