More info about LuaTeX 1.17.0 (security update)

[Joseph Wright]

On 22/05/2023 11:31, Max Chernoff wrote:
> This issue affects all operating systems/architectures, and all LuaTeX
> formats except for ConTeXt. Further details are available at:

Could you explain that a bit more? If it's an engine bug, I don't see 
how the format is relevant? Or, looked at the other way, if it was 
fixable by format changes, why was a change to the engine needed?

Joseph