TI-2026-39344 Aliases CVE-2026-54498 GHSA-97jw-64cj-jc58

view_component: around_render HTML-Safety Bypass

HIGH 73CWE-79Published 2026-07-17 · Updated 2026-07-20

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00453 39th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed view_component (ViewComponent): 4.12.0view_component (RubyGems): 4.12.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
ViewComponent	view_component	4.0.0 to before 4.12.0	4.12.0	Patch available	CNA
—	view_component (RubyGems)	4.0.0 to before 4.12.0	4.12.0	Patch available	GHSA-97jw-64cj-jc58

view_component VendorViewComponent Affected 4.0.0 to before 4.12.0 Fixed in 4.12.0 Patch available CNA
view_component (RubyGems) Vendor— Affected 4.0.0 to before 4.12.0 Fixed in 4.12.0 Patch available GHSA-97jw-64cj-jc58

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:viewcomponent:view_component::::::ruby::*	4.0.0 to before 4.12.0	Vulnerable	ViewComponent

cpe:2.3:a:viewcomponent:view_component:*:*:*:*:*:ruby:*:* Versions 4.0.0 to before 4.12.0 Vulnerable ·ViewComponent

Remediation

Fix · CNA view_component (ViewComponent) Fixed in 4.12.0
Fix · GHSA-97jw-64cj-jc58 view_component (RubyGems) Fixed in 4.12.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-54498
2026-10-03 Alias added: GHSA-97jw-64cj-jc58

References

Exploit 1

https://github.com/ViewComponent/view_component/security/advisories/GHSA-97jw-64cj-jc58

Patch 2

Other 4

TI-2026-32717 view_component: System Test Entry Point Path Check Allows Sibling Directory Escape CVSS 3.1HIGH 7.5
TI-2026-39343 view_component: Reused Component Instances Retain Stale Render Context CVSS 3.1MEDIUM 6.8
TI-2024-14361 view_component Cross-site Scripting vulnerability CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences