CF 2021 Update 5 and JDK 11.0.17 Fails using the <cfdocument permissions attribute

After installing Update 5 for CF2021 and updating the JDK from 11.0.14 to 11.0.17

<cfdocument no longers works if the encryption attribute is specified.

We've tried document-2021.0.05.330109.jar (two versions, one from the update 1,831kb, and one sent to us from CF Support: 4,233kb)

i.e.

<cfdocument
filename = "MyFile.pdf"
format = "PDF"
fontembed = "yes"
mimetype = "text/html"
encryption="128-bit"

permissions = "AllowPrinting,AllowCopy">

My Content

</cfdocument>

Fails with no error message.

Removing

encryption="128-bit"

permissions = "AllowPrinting,AllowCopy"

works, although the pdf can then be edited.

Good:

<cfdocument
filename = "MyFile.pdf"
format = "PDF"
fontembed = "yes"
mimetype = "text/html" >

My Content

</cfdocument>