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semisol 3mo ago 💬 1

For the 7th vulnerability mentioned, the cache key being the ID is not a risk.

The relay may send a forged event with an ID pretending to be another event, but 2 things can happen:

- The event is in cache. Then, forged event gets ignored and nothing happens.

- The event is not in cache. The ID is checked, fails verification and does not get into cache.

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semisol 3mo ago

This causes issues when compounding with the fact Damus does not verify signatures. The next release of Damus iOS will remove this attack vector due to using NostrDB