What’s Vulnerable › Vulnerabilities

CVE-2023-43793: Misskey allows users to bypass authentication of Bull dashboard

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-04 · updated 2026-06-17
• Weakness: CWE-287

Description

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.

Affected products

• misskey-dev misskey: before 2023.9.0 — fixed in 2023.9.0

How to fix

Upgrade to a fixed version: misskey-dev misskey 2023.9.0. Check the vendor advisory for mitigations.

References

• https://github.com/misskey-dev/misskey/commit/c9aeccb2ab260ceedc126e6e366da8cd13ece4b2
• https://github.com/misskey-dev/misskey/security/advisories/GHSA-9fj2-gjcf-cqqc
• https://github.com/nexryai/nexkey/security/advisories/GHSA-g8w5-568f-ffwf
• https://github.com/misskey-dev/misskey/commit/c9aeccb2ab260ceedc126e6e366da8cd13ece4b2
• https://github.com/misskey-dev/misskey/security/advisories/GHSA-9fj2-gjcf-cqqc
• https://github.com/nexryai/nexkey/security/advisories/GHSA-g8w5-568f-ffwf

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