Then again, Alder Lake is so 2021, which in the IT world is like bread from August. Joke of course, coming from someone writing this with an i5-4570.
Seriously though, stories like these show why it is good to keep on top of knowing which BIOS/UEFI version one has and how to update it, especially if an network-admin, etc. E.g. less than a year ago there was an update fixing issues with some Intel CPUs, and around the same time AMD also had a patch fixing an issue for some CPUs (in this case a drivers patch).
Which isn't to say that the leak surely means that a security flaw has been exposed. For all we know, it may be just some instructions like one gets when assembling some furniture piece. But if a flaw gets exposed, it is likely to get addressed, and up to users though to implement the fix, in particular on a level which doesn't come with automatic updates.