It has everything to do with ActivityPub since if you follow that protocol strictly you will cause this behavior. It still doesn't change that Dansup was told that this caused Bad Things(tm) and yet he didn't follow normal procedure in how you handle it.
Vulnerabilities don't need to be buffer overflows.
/cybersec researcher
hahahahaha
Watch and try again ;) I post under my real name.
https://www.cve.org/CVERecord?id=CVE-2024-44754
https://www.youtube.com/watch?v=ZbKLAjPYOEg
Feel free to post less and read more.