PT-2026-27255 · Rails+1 · Action View+1

Published 2026-03-23 · Updated 2026-03-23 · CVE-2026-33168

NVD

CVSS v4.0

2.3

Low

AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-33168

GHSA-V55J-83PF-R9CQ

Affected Products

Action View

Rails

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2026-33168 · Security Note
• https://osv.dev/vulnerability/GHSA-v55j-83pf-r9cq · Vendor Advisory
• https://github.com/rails/rails · Note
• https://github.com/rails/rails/commit/63f5ad83edaa0b976f82d46988d745426aa4a42d · Note
• https://github.com/rails/rails/security/advisories/GHSA-v55j-83pf-r9cq · Note
• https://github.com/rails/rails/releases/tag/v7.2.3.1 · Note
• https://github.com/rails/rails/releases/tag/v8.0.4.1 · Note
• https://github.com/rails/rails/releases/tag/v8.1.2.1 · Note
• https://github.com/rails/rails/commit/0b6f8002b52b9c606fd6be9e7915d9f944cf539c · Note
• https://github.com/rails/rails/commit/c79a07df1e88738df8f68cb0ee759ad6128ca924 · Note
• https://twitter.com/cyberbivash/status/2036222509083709734 · Twitter Post