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TI-2026-70746 Aliases CVE-2026-108856GHSA-5pv8-92g5-57vm

Authorization bypass in UnicomAI Wanwu AppKey minting

Priority MEDIUM 45CWE-639Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

UnicomAI Wanwu through 0.6.5 contains an authorization bypass in the AppKey minting endpoint POST /v1/appspace/app/key, tracked as CWE-639. An authenticated user with low privileges can mint AppKeys bound to another user's MCP server by supplying that server's UUID. The attacker can then open MCP sessions and invoke the server's tools using the victim's upstream authentication.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

UnicomAI Wanwu through 0.6.5 contains an authorization bypass vulnerability that allows authenticated users to mint AppKeys bound to other users' MCP servers via POST /v1/appspace/app/key. Attackers supplying a victim's MCP server UUID with appType mcpserver can open MCP sessions and invoke the server's tools using the victim's upstream authentication.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0028 20th 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
No
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
UnicomAIWanwuup to 0.6.5—No fix listedCNA
  • Wanwu VendorUnicomAI Affected up to 0.6.5 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Wanwu.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-11 Threatist record created from CVE-2026-108856
  2. 2026-10-11 Alias added: GHSA-5pv8-92g5-57vm
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-10-13 Priority changed: LOW → MEDIUM

References

Advisory 1

Other 3

  • TI-2026-70743 UnicomAI Wanwu IDOR lets users delete other tenants' apps CVSS 4.0HIGH 7.2
  • TI-2026-70745 Missing authorization in UnicomAI Wanwu allows AppKey revocation CVSS 4.0MEDIUM 5.3
  • TI-2026-70744 Insecure direct object reference in UnicomAI Wanwu lets users delete AppKeys CVSS 4.0MEDIUM 5.3

Sources

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