CVE-2026-33168

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.

CVSS

No CVSS.

References

Link	Resource
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/rails/rails/security/advisories/GHSA-v55j-83pf-r9cq

Configurations

No configuration.

History

16 Apr 2026, 14:46

Type	Values Removed	Values Added
Summary		(es) Action View proporciona convenciones y ayudantes para construir páginas web con el framework Rails. Anteriormente a las versiones 8.1.2.1, 8.0.4.1 y 7.2.3.1, cuando se utiliza una cadena vacía como nombre de atributo HTML en los ayudantes de etiquetas de Action View, el escape de atributos se omite, produciendo HTML malformado. Un valor de atributo cuidadosamente elaborado podría entonces ser malinterpretado por el navegador como un nombre de atributo separado, posiblemente llevando a XSS. Las aplicaciones que permiten a los usuarios especificar atributos HTML personalizados se ven afectadas. Las versiones 8.1.2.1, 8.0.4.1 y 7.2.3.1 contienen un parche.

23 Mar 2026, 23:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-23 23:17

Updated : 2026-04-16 14:46

NVD link : CVE-2026-33168

Mitre link : CVE-2026-33168

CVE.ORG link : CVE-2026-33168

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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