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TI-2026-75430 Aliases CVE-2026-111644GHSA-c5c3-5f6v-5chh

Missing authentication on /api/ui routes in Misaka Danmu Server

Priority HIGH 70CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

Misaka Danmu Server through 2.8.9 lacks authentication on several routes under /api/ui, including audit, diagnostics, data-check, scan-index and health routes. An unauthenticated remote attacker can read audit logs containing login IPs, server logs and environment paths, delete episode rows, clear media-server mappings and wipe audit history. This is classified as CWE-306, missing authentication for a critical function.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00368 30th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
l429609201misaka_danmu_serverup to 2.8.9—No fix listedCNA
  • misaka_danmu_server Vendorl429609201 Affected up to 2.8.9 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for misaka_danmu_server.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111644
  2. 2026-10-16 Alias added: GHSA-c5c3-5f6v-5chh
  3. 2026-10-18 Priority changed: MEDIUM → LOW
  4. 2026-10-21 CISA SSVC decision points changed
  5. 2026-10-21 Priority changed: LOW → HIGH

References

Advisory 1

Other 3

  • TI-2026-75429 Authentication bypass in Misaka Danmu Server via config rollback CVSS 4.0CRITICAL 9.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences