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Beehaw is also down, but they elected to do it
(hachyderm.io)
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For the best. Knowing that this hacking technique is a vulnerability with the Lemmy project as a whole, I think it's reasonable for instances to temporarily close while a fix is implemented.
How do we know that?
Edit: Seems like https://github.com/LemmyNet/lemmy-ui/pull/1897/files
There was a big discussion about it in the Admin Chat room on Matrix.