# CVE-2026-73648: ruby-rails-html-sanitizer: rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications

CVE-2026-73648 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-73648, released August 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-73648
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0055
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 13, 2026

## Description

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVG_ALLOW_LOCAL_HREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applications with non-default allowed tags that included SVG use or feImage elements could therefore permit external references; a same-origin external SVG referenced by use could execute scripts in the sanitized document's context, while feImage could load external images for tracking. Applications using the default allowed tags are not affected. This issue is fixed in version 1.7.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | hawk2 opensuse-leap 16.0 | 2.7.2+git.1788518533.7d4dadd6-160000.1.1 | [OPENSUSE-SU-2026:22068-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22068-1.md) | Nov 7, 2026 |
| Linux | hawk2 sles 16.0 | 2.7.2+git.1788518533.7d4dadd6-160000.1.1 | [SUSE-SU-2026:24195-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-24195-1.md) | Nov 7, 2026 |
| Linux | ruby-rails-html-sanitizer Debian 14 | 1.7.1-1 | [DEBIAN-CVE-2026-73648](https://patchblox.com/security/data/fix/linux/debian-cve-2026-73648.md) | Aug 15, 2026 |
| Linux | rubygem-rails-html-sanitizer sles 15.6 | 1.0.4-150000.4.9.1 | [SUSE-SU-2026:4445-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4445-1.md) | Oct 5, 2026 |
| Linux | rubygem-rails-html-sanitizer sles 15.7 | 1.0.4-150000.4.9.1 | [SUSE-SU-2026:4445-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4445-1.md) | Oct 5, 2026 |

---

Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.