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CVE-2026-73491: Ruby Html5 Uri Validation Missing Whitespace Entity Stripcve-2026-73491-ruby-html5-uri-validation-missing-whitespace-entity-strip

URI normalization unescapes HTML entities during protocol validation without stripping HTML5 named whitespace character references (	 or 
). Browsers strip these references when parsing URIs, which allows obfuscated 'javascript:' URIs to bypass scheme validation.

RubyCVE-2026-73491CWE-79
by Provallyupdated 2026-09-02Apache-2.0
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