This vulnerability allows any attacker to cause the PeerTube server to stop responding to requests due to an infinite loop in the "inbox" endpoint when receiving crafted ActivityPub activities.
https://research.jfrog.com/vulnerabilities/peertube-activitypub-crawl-dos/
https://github.com/Chocobozzz/PeerTube/releases/tag/v7.1.1
https://github.com/Chocobozzz/PeerTube/commit/76226d85685220db1495025300eca784d0336f7d