SUSE CVE-2026-73491

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73491

A flaw was found in Loofah. The Loofah::HTML5::Scrub.alloweduri? function fails to properly detect javascript: Uniform Resource Identifiers URIs when their scheme is split or prefixed with HTML5 named whitespace character references, such as or . This vulnerability allows a remote attacker to cra...

Exploit for Inefficient Regular Expression Complexity in Rrrene Htmlsanitizeex

CVE-2026-68749 / CVE-2026-68750 — PoC Quadratic denial of ser...

Linux Distros Unpatched Vulnerability : CVE-2026-73491

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2,...

CVE-2026-73491

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

UBUNTU-CVE-2026-73491

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73491

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73492 Loofah `allowed_uri?` does not detect `javascript:` URIs split by numeric character references without semicolons

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: or vbscript: URIs whose scheme is split by semicolon-less numeric character references...

EUVD-2026-57628

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73491 Loofah `allowed_uri?` does not detect `javascript:` URIs split by named whitespace character references

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73491

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73491 Loofah `allowed_uri?` does not detect `javascript:` URIs split by named whitespace character references

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73491 Loofah `allowed_uri?` does not detect `javascript:` URIs split by named whitespace character references

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73491

Loofah 2.25.0–2.25.2 contains a vulnerability in Loofah::HTML5::Scrub.allowed_uri? where javascript: URIs are not rejected if the scheme is split or prefixed by HTML5 named whitespace references ( , ). CGI.unescapeHTML leaves these references intact, causing allowed_uri? to report a URL as safe e...

CVE-2026-73491

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

EUVD-2026-57626

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...

PT-2026-71345

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.allowed uri? does not reject javascript: URIs whose scheme is split or prefixed with the HTML5 named whitespace character...

CVE-2026-73490: Improper Neutralization of Input During Web Page Generation

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...

CVE-2026-73492: Improper Neutralization of Input During Web Page Generation

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: or vbscript: URIs whose scheme is split by semicolon-less numeric character references...

CVE-2026-66829

The CVE affects html_sanitize_ex (HtmlSanitizeEx.html5/1) where attacker-supplied meta refresh elements survive sanitization. The root cause is that a meta element can apply document-wide directives, enabling open redirects to user-chosen sites via a tag. Affected versions: html_sanitize_ex from...