CVE-2026-33168
Published:March 23, 2026
Updated:April 23, 2026
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.
Affected Packages
https://github.com/rails/rails.git (GITHUB):
Affected version(s) =v8.1.2 <v8.1.2.1Fix Suggestion:
Update to version v8.1.2.1https://github.com/rails/rails.git (GITHUB):
Affected version(s) =v7.2.3 <v7.2.3.1Fix Suggestion:
Update to version v7.2.3.1https://github.com/rails/rails.git (GITHUB):
Affected version(s) >=v8.0.0 <v8.0.4.1Fix Suggestion:
Update to version v8.0.4.1actionview (RUBY):
Affected version(s) >=8.1.0.beta1 <8.1.2.1Fix Suggestion:
Update to version 8.1.2.1actionview (RUBY):
Affected version(s) >=8.0.0.beta1 <8.0.4.1Fix Suggestion:
Update to version 8.0.4.1actionview (RUBY):
Affected version(s) >=4.1.0.beta1 <7.2.3.1Fix Suggestion:
Update to version 7.2.3.1Related Resources (9)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.02
