{"id":"CVE-2026-33168","summary":"Rails has a possible XSS vulnerability in its Action View tag helpers","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.","aliases":["GHSA-v55j-83pf-r9cq"],"modified":"2026-04-10T05:42:38.517147Z","published":"2026-03-23T23:01:22.019Z","related":["CGA-7gm3-8gfq-33f9"],"database_specific":{"cwe_ids":["CWE-79"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33168.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rails/rails","events":[{"introduced":"80827ca7ff33ca3026f2c74fe8249ccc6f513318"},{"fixed":"1db4b89687cc18311fc3f92623136705df24e671"}],"database_specific":{"versions":[{"introduced":"8.1.0.beta1"},{"fixed":"8.1.2.1"}]}},{"type":"GIT","repo":"https://github.com/rails/rails","events":[{"introduced":"72bc36fb47aa3a9b10149ecefc1f344d7b028d79"},{"fixed":"a79efed95797b196575a98845dc989e3106a9acb"}],"database_specific":{"versions":[{"introduced":"8.0.0.beta1"},{"fixed":"8.0.4.1"}]}},{"type":"GIT","repo":"https://github.com/rails/rails","events":[{"introduced":"0"},{"fixed":"ba76fca032a66f3716ca8a661c9ddb006acaf885"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"7.2.3.1"}]}}],"versions":["v0.10.0","v0.10.1","v0.11.0","v0.11.1","v0.12.0","v0.13.0","v0.13.1","v0.14.1","v0.14.3","v0.9.1","v0.9.2","v0.9.3","v0.9.4","v0.9.4.1","v0.9.5","v1.1.0","v1.1.0_RC1","v1.1.1","v2.0.0","v2.0.0_PR","v2.0.0_RC1","v2.0.0_RC2","v2.0.1","v3.0.0.beta.3","v3.0.0.beta3","v3.1.0.beta1","v3.1.0.rc1","v3.2.0.rc1","v4.0.0.beta1","v4.0.0.rc1","v4.2.0.beta1","v5.0.0.beta1","v5.0.0.beta2","v5.0.0.beta4","v5.1.0.beta1","v6.0.0.beta1","v6.0.0.beta2","v6.1.0.rc1","v7.0.0.alpha1","v7.0.0.alpha2","v7.1.0.beta1","v7.2.0.beta1","v7.2.0.beta2","v7.2.0.beta3","v7.2.0.rc1","v7.2.1","v7.2.2","v7.2.3","v8.0.0","v8.0.0.beta1","v8.0.0.rc1","v8.0.0.rc2","v8.0.1","v8.0.2","v8.0.3","v8.0.4","v8.1.0","v8.1.0.beta1","v8.1.0.rc1","v8.1.1","v8.1.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33168.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","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"}]}