{"id":"CVE-2026-65898","state":"PUBLISHED","title":"DOMPurify before 3.4.11 Permanent Attribute Allowlist Pollution via setConfig","description":"DOMPurify before 3.4.11 fails to clone the ALLOWED_ATTR allowlist when setConfig() is used with an uponSanitizeAttribute hook, allowing the hook to permanently mutate the shared allowlist. 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