{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "8.1.0.beta1"
              },
              {
                "fixed": "8.1.2.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "80827ca7ff33ca3026f2c74fe8249ccc6f513318"
            },
            {
              "fixed": "1db4b89687cc18311fc3f92623136705df24e671"
            }
          ],
          "repo": "https://github.com/rails/rails",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "8.0.0.beta1"
              },
              {
                "fixed": "8.0.4.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "72bc36fb47aa3a9b10149ecefc1f344d7b028d79"
            },
            {
              "fixed": "a79efed95797b196575a98845dc989e3106a9acb"
            }
          ],
          "repo": "https://github.com/rails/rails",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "7.2.3.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ba76fca032a66f3716ca8a661c9ddb006acaf885"
            }
          ],
          "repo": "https://github.com/rails/rails",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-v55j-83pf-r9cq"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33168.json"
  },
  "details": "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.",
  "id": "CVE-2026-33168",
  "modified": "2026-04-01T23:09:44.706213745Z",
  "published": "2026-03-23T23:01:22.019Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33168.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/rails/rails/commit/0b6f8002b52b9c606fd6be9e7915d9f944cf539c"
    },
    {
      "type": "FIX",
      "url": "https://github.com/rails/rails/commit/63f5ad83edaa0b976f82d46988d745426aa4a42d"
    },
    {
      "type": "FIX",
      "url": "https://github.com/rails/rails/commit/c79a07df1e88738df8f68cb0ee759ad6128ca924"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails/releases/tag/v7.2.3.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails/releases/tag/v8.0.4.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails/releases/tag/v8.1.2.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/rails/rails/security/advisories/GHSA-v55j-83pf-r9cq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33168"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Rails has a possible XSS vulnerability in its Action View tag helpers"
}