Is CVE-2026-111643 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-111643?

CVE-2026-111643 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-111643

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.