CVE-2026-49458

Description

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitize(node, { IN_PLACE: true }) accepted same-origin foreign-realm DOM nodes while follow-on checks used parent-realm constructors, causing instanceof checks for forms, named node maps, document fragments, and elements to fail and skip clobber, template-content, and shadow-DOM sanitization branches so executable markup could survive. This issue is fixed in version 3.4.6.

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Produits concernés

• cure53 DOMPurify

Scores CVSS

Faiblesses (CWE)

• CWE-79
• CWE-501
• CWE-693

Références

• https://github.com/cure53/DOMPurify/commit/bb7739e5bccec7e1ab3dae3f3e42d02db3acaaae Patch
• https://github.com/cure53/DOMPurify/releases/tag/3.4.6 Release Notes
• https://github.com/cure53/DOMPurify/security/advisories/GHSA-hpcv-96wg-7vj8 ExploitMitigationVendor Advisory
• https://github.com/cure53/DOMPurify/security/advisories/GHSA-hpcv-96wg-7vj8 ExploitMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories