Cross-site Scripting (XSS) Affecting cockpit-image-builder package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.3% (21st percentile)

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  • Snyk IDSNYK-CENTOS10-COCKPITIMAGEBUILDER-19506668
  • published3 Sept 2026
  • disclosed1 Sept 2026

Introduced: 1 Sep 2026

CVE-2026-84371  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Centos:10 cockpit-image-builder.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cockpit-image-builder package and not the cockpit-image-builder package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From version 1.9.0 until version 2.17.7, packages/sanitize-html/index.js validates an animation value attribute as one flat URL and does not recognize that attributeName selecting href or xlink:href gives the sibling values, from, to, or by attribute SVG SMIL URL semantics. In configurations that allow the animate, animateColor, animateMotion, animateTransform, or set elements, a values list can begin with a safe fragment and contain a later executable destination that survives allowedSchemesAppliedToAttributes checking. When the sanitized SVG is rendered, the browser can copy that later destination into the live link, and a victim who activates the link can execute script in the application's origin. This issue is fixed in version 2.17.7.

CVSS Base Scores

version 3.1