Cross-site Scripting (XSS) Affecting node-dompurify package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-DEBIAN14-NODEDOMPURIFY-21759124
  • published28 Oct 2026
  • disclosed27 Oct 2026

Introduced: 27 Oct 2026

NewCVE-2026-116802  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 node-dompurify.

NVD Description

Note: Versions mentioned in the description apply only to the upstream node-dompurify package and not the node-dompurify package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

DOMPurify before 3.4.17 contains a cross-site scripting vulnerability that allows attackers to bypass the SMIL attributeName=href guard when PARSER_MEDIA_TYPE is application/xhtml+xml, because transformCaseFunc does not lowercase attribute names. Attackers can submit SVG with an animate or set element using attributeName="href" and a javascript: entry in values to execute script when users click the sanitized link.

CVSS Base Scores

version 3.1