Vulnerability advisory
CVE-2026-33168
Rails has a possible XSS vulnerability in its Action View tag helpers
Also known as GHSA-v55j-83pf-r9cq
Severity
- CVSS 4.0
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
Affected versions
Repository
| Affected commits | Fixed by commit |
|---|---|
| GIT github.com/rails/rails ↗ | |
| 80827ca7ff33ca3026f2c74fe8249ccc6f513318 to before 1db4b89687cc18311fc3f92623136705df24e671 | 1db4b89687cc18311fc3f92623136705df24e671 |
| 72bc36fb47aa3a9b10149ecefc1f344d7b028d79 to before a79efed95797b196575a98845dc989e3106a9acb | a79efed95797b196575a98845dc989e3106a9acb |
| All commits before ba76fca032a66f3716ca8a661c9ddb006acaf885 | ba76fca032a66f3716ca8a661c9ddb006acaf885 |
| Not specified | 0b6f8002b52b9c606fd6be9e7915d9f944cf539c |
| Not specified | 63f5ad83edaa0b976f82d46988d745426aa4a42d |
| Not specified | c79a07df1e88738df8f68cb0ee759ad6128ca924 |
Also listed as affected (61)
| |
Description
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.
References
- Webgithub.com/rails/rails/releases/tag/v7.2.3.1 ↗
- Webgithub.com/rails/rails/releases/tag/v8.0.4.1 ↗
- Webgithub.com/rails/rails/releases/tag/v8.1.2.1 ↗
- Advisorygithub.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33168.json ↗
- Advisorygithub.com/rails/rails/security/advisories/GHSA-v55j-83pf-r9cq ↗
- Advisorynvd.nist.gov/vuln/detail/CVE-2026-33168 ↗
- Fixgithub.com/rails/rails/commit/0b6f8002b52b9c606fd6be9e7915d9f944cf539c ↗
- Fixgithub.com/rails/rails/commit/63f5ad83edaa0b976f82d46988d745426aa4a42d ↗
- Fixgithub.com/rails/rails/commit/c79a07df1e88738df8f68cb0ee759ad6128ca924 ↗