ruby-advisory-db/gems/actionview/CVE-2026-33168.yml at 03c7702be716a958a2e0b095e08c2ab0736cd55e · rubysec/ruby-advisory-db · GitHub

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---
gem: actionview
framework: rails
cve: 2026-33168
ghsa: v55j-83pf-r9cq
url: https://github.com/rails/rails/security/advisories/GHSA-v55j-83pf-r9cq
title: Rails has a possible XSS vulnerability in its Action View tag helpers
date: 2026-03-23
description: |
  ### Impact
  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.

  ### Releases
  The fixed releases are available at the normal locations.
patched_versions:
  - "~> 7.2.3, >= 7.2.3.1"
  - "~> 8.0.4, >= 8.0.4.1"
  - ">= 8.1.2.1"
related:
  url:
    - https://github.com/rails/rails/security/advisories/GHSA-v55j-83pf-r9cq
    - https://github.com/rails/rails/commit/0b6f8002b52b9c606fd6be9e7915d9f944cf539c
    - https://github.com/rails/rails/commit/63f5ad83edaa0b976f82d46988d745426aa4a42d
    - https://github.com/rails/rails/commit/c79a07df1e88738df8f68cb0ee759ad6128ca924
    - https://github.com/rails/rails/releases/tag/v7.2.3.1
    - https://github.com/rails/rails/releases/tag/v8.0.4.1
    - https://github.com/rails/rails/releases/tag/v8.1.2.1
    - https://github.com/advisories/GHSA-v55j-83pf-r9cq