system
Provide references for <CVE-2021-3838>.
user
Where can I find more information about <CVE-2021-3838>?
assistant
References are available at: https://huntr.com/bounties/0bdddc12-ff67-4815-ab9f-6011a974f48e, https://github.com/dompdf/dompdf/commit/99aeec1efec9213e87098d42eb09439e7ee0bb6a.