VULNERABILITY INTELLIGENCE

CVE-2026-44837

CVSS score5.9 MEDIUM
EPSS probability0.41%
CISA KEVNot currently listed
Published2026-05-26
Last modified2026-07-24
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-187

Primary references