CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2026-44837
High (7.5) in viewcomponent view component. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in view_component 4.9.0.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
- CWE
- CWE-187
- Published
- Modified
- Record from
- the NVD, synced
Affected
- viewcomponent:view_component
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-hg3h-g7xc-f7vp | RubyGems | view_component | >=3.0.0 <4.9.0 | 4.9.0 |