CVE-2026-111644 Misaka Danmu Server through 2.8.9 Missing Authentication on /api/ui Routes

Medium 6.9 Published Updated

Unauthenticated attackers can access sensitive audit logs and modify or delete data on Misaka Danmu Server due to missing authentication on specific API routes.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-111644?

CVE-2026-111644 is a medium-severity missing authorization vulnerability in l429609201 misaka_danmu_server, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Misaka Danmu Server through 2.8.9 contains a missing authentication vulnerability that allows unauthenticated attackers to access audit, diagnostics, data-check, scan-index and health routes under /api/ui lacking the get_current_user dependency. Attackers can read audit logs with login IPs, server logs and environment paths, delete episode rows, clear media-server mappings, and wipe audit history.

Weakness: CWE-306

Which versions are affected by CVE-2026-111644?

How do I fix CVE-2026-111644?

No fix has been published for CVE-2026-111644 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-111644 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111644 exists.

Sources

Also known as GHSA-c5c3-5f6v-5chh.

Is CVE-2026-111644 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free