CVE-2024-26143: Actionpack Cross-Site Scripting Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9822-6m93-xqf4",
  "modified" : "2026-06-08T23:38:44Z",
  "published" : "2024-02-27T21:41:12Z",
  "aliases" : [ "CVE-2024-26143" ],
  "summary" : "Rails has possible XSS Vulnerability in Action Controller",
  "details" : "# Possible XSS Vulnerability in Action Controller\n\nThere is a possible XSS vulnerability when using the translation helpers\n(`translate`, `t`, etc) in Action Controller. This vulnerability has been\nassigned the CVE identifier CVE-2024-26143.\n\nVersions Affected:  >= 7.0.0.\nNot affected:       < 7.0.0\nFixed Versions:     7.1.3.1, 7.0.8.1\n\nImpact\n------\nApplications using translation methods like `translate`, or `t` on a\ncontroller, with a key ending in \"_html\", a `:default` key which contains\nuntrusted user input, and the resulting string is used in a view, may be\nsusceptible to an XSS vulnerability.\n\nFor example, impacted code will look something like this:\n\n```ruby\nclass ArticlesController < ApplicationController\n  def show  \n    @message = t(\"message_html\", default: untrusted_input)\n    # The `show` template displays the contents of `@message`\n  end\nend\n```\n\nTo reiterate the pre-conditions, applications must:\n\n* Use a translation function from a controller (i.e. _not_ I18n.t, or `t` from\n  a view)\n* Use a key that ends in `_html`\n* Use a default value where the default value is untrusted and unescaped input\n* Send the text to the victim (whether that's part of a template, or a\n  `render` call)\n\nAll users running an affected release should either upgrade or use one of the\nworkarounds immediately.\n\nReleases\n--------\nThe fixed releases are available at the normal locations.\n\nWorkarounds\n-----------\nThere are no feasible workarounds for this issue.\n\nPatches\n-------\nTo aid users who aren't able to upgrade immediately we have provided patches for\nthe two supported release series. They are in git-am format and consist of a\nsingle changeset.\n\n*  7-0-translate-xss.patch - Patch for 7.0 series\n*  7-1-translate-xss.patch - Patch for 7.1 series\n\nCredits\n-------\n\nThanks to [ooooooo_q](https://hackerone.com/ooooooo_q) for the patch and fix!",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "actionpack"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.0.8.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "actionpack"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.1.0"
      }, {
        "fixed" : "7.1.3.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "rails"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.0.8.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "rails"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.1.0"
      }, {
        "fixed" : "7.1.3.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/rails/rails/security/advisories/GHSA-9822-6m93-xqf4"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-26143"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rails/rails/commit/4c83b331092a79d58e4adffe4be5f250fa5782cc"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rails/rails/commit/5187a9ef51980ad1b8e81945ebe0462d28f84f9e"
  }, {
    "type" : "WEB",
    "url" : "https://discuss.rubyonrails.org/t/possible-xss-vulnerability-in-action-controller/84947"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/rails/rails"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2024-26143.yml"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20240510-0004"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-02-27T21:41:12Z",
    "nvd_published_at" : "2024-02-27T16:15:46Z"
  }
}