False security: Dashy's client-side authentication

False security: Dashy’s client-side authentication.
Update 3/28: The devs have announced that the auth system is to be deprecated. See details below.
About a month ago, I went looking for a dashboard for my homelab—something to help visualize the services I run. I found Dashy, a popular (14.6k GitHub stars) dashboard designed for self-hosters. I deployed it and started configuring it, but noticed that something about its authentication felt off. I started digging and quickly found its security to be borderline useless, permitting unauthenticated reads and writes of its configuration.

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