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CVE-2026-33168

CVE-2026-33168 · Rails has a possible XSS vulnerability in its Action View tag helpers

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 2.3 · Low · EPSS 0.7% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • actionview

    Versions
    • >= 8.1.0.beta1, < 8.1.2.1: Affected
    • >= 8.0.0.beta1, < 8.0.4.1: Affected
    • < 7.2.3.1: Affected

    No fix published

  • rails Debian:12

    Versions
    • 2:6.1.7.10+dfsg-1~deb12u1
    • 2:6.1.7.10+dfsg-1~deb12u2
    • 2:6.1.7.3+dfsg-1
    • 2:6.1.7.3+dfsg-10
    • 2:6.1.7.3+dfsg-11
    • 2:6.1.7.3+dfsg-12
    • 2:6.1.7.3+dfsg-13
    • 2:6.1.7.3+dfsg-2
    • 2:6.1.7.3+dfsg-2~deb12u1
    • 2:6.1.7.3+dfsg-3
    • 2:6.1.7.3+dfsg-4
    • 2:6.1.7.3+dfsg-5
    • 2:6.1.7.3+dfsg-6
    • 2:6.1.7.3+dfsg-7
    • 2:6.1.7.3+dfsg-7~exp1
    • 2:6.1.7.3+dfsg-8
    • 2:6.1.7.3+dfsg-9
    Affected ranges
    • ECOSYSTEM: < 2:6.1.7.10+dfsg-1~deb12u3

    Update to 2:6.1.7.10+dfsg-1~deb12u3

  • rails Debian:13

    Versions
    • 2:7.2.2.1+dfsg-7
    • 2:7.2.2.2+dfsg-1
    • 2:7.2.2.2+dfsg-2~deb13u1
    Affected ranges
    • ECOSYSTEM: < 2:7.2.2.2+dfsg-2~deb13u2

    Update to 2:7.2.2.2+dfsg-2~deb13u2

  • rails Debian:14

    Versions
    • 2:7.2.2.1+dfsg-7
    • 2:7.2.2.2+dfsg-1
    • 2:7.2.2.2+dfsg-2
    • 2:7.2.2.2+dfsg-2~deb13u1
    • 2:7.2.2.2+dfsg-2~deb13u2
    • 2:7.2.3+dfsg-1
    • 2:7.2.3+dfsg-2
    • 2:7.2.3+dfsg-3
    Affected ranges
    • ECOSYSTEM: < 2:7.2.3.1+dfsg-1

    Update to 2:7.2.3.1+dfsg-1

  • rails Ubuntu:Pro:16.04:LTS

    Versions
    • 2:4.1.10-1
    • 2:4.2.5-1
    • 2:4.2.5.1-1
    • 2:4.2.5.2-2
    • 2:4.2.6-1
    • 2:4.2.6-1ubuntu0.1~esm1
    • 2:4.2.6-1ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rails Ubuntu:Pro:18.04:LTS

    Versions
    • 2:4.2.9-2
    • 2:4.2.9-4
    • 2:4.2.10-0ubuntu4
    • 2:4.2.10-0ubuntu4+esm1
    • 2:4.2.10-0ubuntu4+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rails Ubuntu:Pro:20.04:LTS

    Versions
    • 2:5.2.2.1+dfsg-1ubuntu1
    • 2:5.2.3+dfsg-3
    • 2:5.2.3+dfsg-3ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rails Ubuntu:Pro:22.04:LTS

    Versions
    • 2:6.0.3.7+dfsg-2
    • 2:6.1.4.1+dfsg-8ubuntu2
    • 2:6.1.4.1+dfsg-8ubuntu2+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rails Ubuntu:24.04:LTS

    Versions
    • 2:6.1.7.3+dfsg-2build1
    • 2:6.1.7.3+dfsg-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rails Ubuntu:25.10

    Versions
    • 2:6.1.7.3+dfsg-7
    • 2:7.2.2.1+dfsg-7
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rails Ubuntu:26.10

    Versions
    • 2:7.2.3+dfsg-2
    • 2:7.2.3.2+dfsg-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rails Ubuntu:26.04:LTS

    Versions
    • 2:7.2.2.1+dfsg-7
    • 2:7.2.2.2+dfsg-2
    • 2:7.2.3+dfsg-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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