CVE-2026-54498
Description
view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 4.0.0 until 4.12.0, ViewComponent::Base#around_render can return HTML-unsafe strings that bypass the escaping behavior applied to normal #call return values. This creates an XSS risk when downstream applications use around_render to wrap, replace, instrument, or conditionally return content that includes user-controlled data, and ViewComponent::Collection#render_in can amplify the issue by joining per-item results and marking the entire output html_safe, converting raw unsafe output into an ActiveSupport::SafeBuffer. This issue is fixed in version 4.12.0.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
view_componentRubyGems | >= 4.0.0, < 4.12.0 | 4.12.0 |
Affected products
2<4.12.0+ 1 more
- (no CPE)range: <4.12.0
- cpe:2.3:a:viewcomponent:view_component:*:*:*:*:*:ruby:*:*range: >=4.0.0,<4.12.0
Patches
Vulnerability mechanics
References
7- github.com/ViewComponent/view_component/commit/48e5fd2d602344c7d33019fbc5c8b087e315bb78nvdPatchWEB
- github.com/ViewComponent/view_component/commit/6796b2e89d0bd7b9d7d763a86275e5334731dd61nvdPatch
- github.com/ViewComponent/view_component/security/advisories/GHSA-97jw-64cj-jc58nvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-97jw-64cj-jc58ghsaADVISORY
- github.com/ViewComponent/view_component/releases/tag/v4.12.0nvdProductRelease NotesWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/view_component/CVE-2026-54498.ymlghsaWEB
- www.cve.org/CVERecord/SearchResultsghsaWEB
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