Cross-site Scripting (XSS) Affecting satellite:el8/rubygem-rails-html-sanitizer package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.55% (44th percentile)

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  • Snyk IDSNYK-RHEL10-SATELLITE-18920932
  • published19 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-73648  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 satellite:el8/rubygem-rails-html-sanitizer.

NVD Description

Note: Versions mentioned in the description apply only to the upstream satellite:el8/rubygem-rails-html-sanitizer package and not the satellite:el8/rubygem-rails-html-sanitizer package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1