No, not directly; unless unRAID uses the PEAR PHP package and implemented a compromised copy...
I mentioned that only as an example of how easily compromise *could* happen, even using only reputable sources (which is the #1 response when talking about vm or docker vulnerabilities usually).
As a more direct example, I run a Plex docker. So if Plex's software has, or developed, a bug that allowed exploitation of the runc vulnerability, I could end up riding the proverbial smelly creek without a poop-stick!
Thank you 🙂 I for one will sleep easier with that decision.
Thank you for the support, and once again I am thankful for the responsiveness of this community!