CVE-2026-44837

HighCVSS 7.5/10Last modified Jul 24, 2026

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 system test entrypoint canonicalizes a user-controlled file path with File.realpath, then checks whether the resolved path starts with the temp directory path. This is not a safe containment check because sibling directories can share the same string prefix. This vulnerability is fixed in 4.9.0.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-187

Affected software

No affected versions have been published.

Timeline

Published: May 26, 2026
Last modified: Jul 24, 2026
NVD status: Analyzed

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