CVE-2026-111643
criticalMisaka Danmu Server through 2.8.9 contains an authentication bypass vulnerability that allows unauthenticated attackers to write arbitrary configuration keys v…
Misaka Danmu Server through 2.8.9 contains an authentication bypass vulnerability that allows unauthenticated attackers to write arbitrary configuration keys via the unprotected POST /api/ui/config-history/rollback endpoint. Attackers can set the ipWhitelist key to their own /32 address, or alter trustedProxies and webhookApiKey, to access every protected endpoint as the administrator.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/api/ui/config_history.py... disclosure@vulncheck.com
- https://github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/security.py#L136-L182 disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/misaka-danmu-server-ui-api-missing-authentication disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/misaka-danmu-server-through-2.8.9-authentication-bypa... disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/misaka-danmu-server-ui-api-missing-authentication 134c704f-9b21-4f2e-91b3-4a467353bcc0