CVE-2026-111643
Misaka Danmu Server through 2.8.9 Authentication Bypass via Config-History Rollback
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-306 |
| Vendor | l429609201 |
| Product | misaka_danmu_server |
| Published | Oct 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for l429609201 misaka_danmu_server
Be the first to know when new critical vulnerabilities affecting l429609201 misaka_danmu_server are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
l429609201 / misaka_danmu_server
0 ≤ 2.8.9
References
hackmd.io: https://hackmd.io/@hieuPenguinnn/misaka-danmu-server-ui-api-missing-authentication github.com: https://github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/api/ui/config_history.py#L51-L66 github.com: https://github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/security.py#L136-L182 vulncheck.com: https://www.vulncheck.com/advisories/misaka-danmu-server-through-2.8.9-authentication-bypass-via-config-history-rollback
Credits
hieuPenguinnn