I'm not sure whether this is an Mbin or Lemmy bug, but it looks like there's some sort of breakage involving their interaction.
A user on an Mbin home instance (fedia.io) submitted a post to a community on a Lemmy instance (beehaw.org).
https://beehaw.org/post/23981271
When viewed via the Web UI on Lemmy instances (at least all the ones, I tried, lemmy.today, lemmy.ml, and beehaw.org), as well as at least Eternity on lemmy.today this post is a link to an image, possibly proxied via pict-rs if the instance does such proxying:
https://fedia.io/media/93/77/937761715da35c5c9fb1267e65b4ea54c2b649c2eebbf8ce26d2b4cba20097bf.jpg
https://beehaw.org/post/23981271
https://lemmy.ml/post/41016280
https://lemmy.today/post/44629301
It contains no link to the URL that the submitter intended to link to.
When viewed via the PiedFed Web UI (checking using olio.cafe) or, based on what I believe to be the case from other responses, the Mbin Web UI, the post apparently links to the intended URL in a link beneath the title:
https://www.tomshardware.com/tech-industry/artificial-intelligence/chatgpt-could-prioritize-sponsored-content-as-part-of-ad-strategy-sponsored-content-could-allegedly-be-given-preferential-treatment-in-llms-responses-openai-to-use-chat-data-to-deliver-highly-personalized-results
https://olio.cafe/c/technology/p/78253/chatgpt-could-prioritize-sponsored-content-as-part-of-ad-strategy-sponsored-content-could-a
Just wanted to make the devs aware of the interaction.
You're probably thinking of the Jia Tan attack on xz; because of a distro patch in Debian, code in xz had the ability to affect sshd. The changes weren't actually to the sshd source, but trying to use an obscure route to affect sshd.