[ CVE-2026-111643 · Published 16 Oct 2026 ]
Vulnerability in l429609201 misaka_danmu_server
CVSS 9.8
EPSS <1%No fix listed yet
[ Why it matters ]Priority signals
- Critical severity: CVSS 9.8
[ Description ]Official description
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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/api/ui/config_history.py
- github.com/l429609201/misaka_danmu_server/blob/v2.8.9/src/security.py
- hackmd.io/@hieuPenguinnn/misaka-danmu-server-ui-api-missing-authentication
- www.vulncheck.com/advisories/misaka-danmu-server-through-2.8.9-authentication-bypass-vi…