CVE-2026-73490

Description

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Prior to 2.25.2, Loofah's HTML5 sanitizer applies its local-reference restriction only to the xlink:href attribute on SVG use and feImage elements, while browsers also accept the plain href attribute. A crafted sanitized SVG can therefore reference an arbitrary same-origin external document; use may render external SVG content containing scripts or other dangerous content, and feImage may load external images for tracking. Applications that sanitize user-supplied SVG with Loofah's default allowlist are affected. This issue is fixed in version 2.25.2.

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Produits concernés

• flavorjones loofah

Scores CVSS

Faiblesses (CWE)

• CWE-79

Références

• https://github.com/flavorjones/loofah/commit/20867b9be689521887364b74822c41ef830523c9
• https://github.com/flavorjones/loofah/pull/308
• https://github.com/flavorjones/loofah/releases/tag/v2.25.2
• https://github.com/flavorjones/loofah/security/advisories/GHSA-9wjq-cp2p-hrgf

Ailleurs

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