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


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.2% (10th percentile)

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  • Snyk IDSNYK-ECHOLATEST-NODEDOMPURIFY-20936521
  • published14 Oct 2026
  • disclosed12 Oct 2026

Introduced: 12 Oct 2026

NewCVE-2026-109345  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest 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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

DOMPurify before 3.4.16 contains a cross-site scripting vulnerability that allows attackers to bypass sanitization because IN_PLACE mode returns a force-removed style element whose text content still carries markup. Attackers can supply a style element containing a closing style tag and an img onerror payload, which executes script when the application serializes and re-parses the returned node.

CVSS Base Scores

version 3.1