Misskey is an open source, decentralized social media platform. Prior to version 2023.9.0, by editing the URL, a user can bypass the authentication of the Bull dashboard, which is the job queue management UI, and access it. Version 2023.9.0 contains a fix. There are no known workarounds.
https://github.com/nexryai/nexkey/security/advisories/GHSA-g8w5-568f-ffwf
https://github.com/misskey-dev/misskey/security/advisories/GHSA-9fj2-gjcf-cqqc
https://github.com/misskey-dev/misskey/commit/c9aeccb2ab260ceedc126e6e366da8cd13ece4b2