[Jimmc414]

While this vulnerability has nothing to do with prompt injection or LLMs interpreting tokens, you do raise a debatable point about prompt injection being potentially unsolvable.

edit: after parent clarification

[eranation]

Yes, my bad, I'm not talking about this particular XSS attack, I'm wondering if MCPs in general have a fundamental injection problem that isn't solvable, indeed a bit off topic.

edit: thanks for the feedback!