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GHSA-4V6X-C7XX-HW9F CommonMark has DisallowedRawHtml extension bypass via whitespace in HTML tag names

🗓️ 06 Mar 2026 23:27:03Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

CommonMark DisallowedRawHtml can be bypassed by whitespace in tag names, enabling XSS; fixed in 2.8.1.

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20 Mar 2026 21:35Current
5.6Medium risk
Vulners AI Score5.6
CVSS 45.1
EPSS0.00217
5