CVE-2026-111643
CVE-2026-111643 · Misaka Danmu Server through 2.8.9 Authentication Bypass via Config-History Rollback
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 9.3 · Critical · EPSS 0.6%
- Published
- Updated
Affected products and versions
misaka_danmu_server
- Versions
- ≥ 0, ≤ 2.8.9: Affected (custom)
No fix published
Original sources
- https://hackmd.io/@hieuPenguinnn/misaka-danmu-server-ui-api-missing-authentication
- https://github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/api/ui/config_history.py#L51-L66
- https://github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/security.py#L136-L182
- https://www.vulncheck.com/advisories/misaka-danmu-server-through-2.8.9-authentication-bypass-via-config-history-rollback
- https://nvd.nist.gov/vuln/detail/CVE-2026-111643