Read the docs
TI-2026-25598 Aliases CVE-2026-33168GHSA-v55j-83pf-r9cq

Rails has a possible XSS vulnerability in its Action View tag helpers

Priority LOW 13CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
Present
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-79.

Summary

Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00678 52nd percentileScored 2026-11-07
Fix Partial actionview (rails): 8.1.2.1, 8.0.4.1, 7.2.3.1actionview (RubyGems): 8.1.2.1, 8.0.4.1, 7.2.3.1Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
Railsactionview8.1.0.beta1 to before 8.1.2.1; 8.0.0.beta1 to before 8.0.4.1; before 7.2.3.18.1.2.1, 8.0.4.1, 7.2.3.1Patch availableCNA
—actionview (RubyGems)8.1.0.beta1 to before 8.1.2.18.1.2.1Patch availableGHSA-v55j-83pf-r9cq
—actionview (RubyGems)8.0.0.beta1 to before 8.0.4.18.0.4.1Patch availableGHSA-v55j-83pf-r9cq
—actionview (RubyGems)before 7.2.3.17.2.3.1Patch availableGHSA-v55j-83pf-r9cq
  • actionview VendorRails Affected 8.1.0.beta1 to before 8.1.2.1; 8.0.0.beta1 to before 8.0.4.1; before 7.2.3.1 Fixed in 8.1.2.1, 8.0.4.1, 7.2.3.1 Patch available CNA
  • actionview (RubyGems) Vendor— Affected 8.1.0.beta1 to before 8.1.2.1 Fixed in 8.1.2.1 Patch available GHSA-v55j-83pf-r9cq
  • actionview (RubyGems) Vendor— Affected 8.0.0.beta1 to before 8.0.4.1 Fixed in 8.0.4.1 Patch available GHSA-v55j-83pf-r9cq
  • actionview (RubyGems) Vendor— Affected before 7.2.3.1 Fixed in 7.2.3.1 Patch available GHSA-v55j-83pf-r9cq

Remediation

  • Fix · CNA actionview (rails) Fixed in 8.1.2.1, 8.0.4.1, 7.2.3.1
  • Fix · GHSA-v55j-83pf-r9cq actionview (RubyGems) Fixed in 8.1.2.1 Advisory →
  • Fix · GHSA-v55j-83pf-r9cq actionview (RubyGems) Fixed in 8.0.4.1 Advisory →
  • Fix · GHSA-v55j-83pf-r9cq actionview (RubyGems) Fixed in 7.2.3.1 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat 3scale API Management Platform 2AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33168
  2. 2026-10-03 Alias added: GHSA-v55j-83pf-r9cq

References

Advisory 1

Other 9

  • TI-2014-00124 Directory traversal vulnerability in actionpack/lib/abstract_controller/base.rb in the… KEVCVSS 3.1HIGH 7.5
  • TI-2019-03828 Path traversal in Rails https://github.com/rails/rails KEVCVSS 3.1HIGH 7.5
  • TI-2016-00672 Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.1, 4.0.x… KEVCVSS 3.1HIGH 7.5
  • TI-2019-03830 Command injection in Rails https://github.com/rails/rails CVSS 3.1CRITICAL 9.8
  • TI-2026-47043 Action Pack: Possible arbitrary file read and remote code execution in Active Storage variant processing CVSS 4.0CRITICAL 9.5
  • TI-2025-18040 Command injection in Rails activestorage CVSS 4.0CRITICAL 9.2
See all 163 →

Sources

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