Sign in Sign up
JA · EN · FR
SecPulse
Categories
CVE-2026-108856 medium CVSS 4.2

Vulnerability in UnicomAI Wanwu (CVE-2026-108856)

Summary

Vulnerability in UnicomAI Wanwu (CVE-2026-108856). Risk of unauthorized operations or information disclosure. Exploitable via POST /v1/appspace/app/key..

Original description

The description as published by the source.

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.

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-108856 has been found in UnicomAI Wanwu.
Attackers can target a specific entry point like POST /v1/appspace/app/key. over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 4.2/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "UnicomAI Wanwu CVE-2026-108856" on the vendor's site.

CVE-2026-108856 (UnicomAI Wanwu) — CWE-639 / CVSS v3 4.2
Attack vector: remote (network-reachable) / no user interaction
Attack surface: POST /v1/appspace/app/key.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-639) exists in UnicomAI Wanwu. Attackers reach the vulnerable code path via POST /v1/appspace/app/key..

📍 Affected scope

Check the vendor advisory for the affected versions of UnicomAI Wanwu. Attack surface: POST /v1/appspace/app/key..

🔥 Severity

Severity: Medium (CVSS 4.2/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual POST /v1/appspace/app/key. requests with malformed payloads or SQL meta-characters. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで UnicomAI Wanwu を使っているサービスとバージョンを洗い出す。

  2. 2
    Hunt for indicators of compromise detect 
    grep 'POST /v1/appspace/app/key.' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'

    アクセスログで POST /v1/appspace/app/key. への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。

  3. 3
    Post-deployment verification verify 
    Replay attack against POST /v1/appspace/app/key. on staging to confirm patch closes the vector

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 2 と同じログクエリでアラート再発が無いか継続監視。

References

We use cookies for analytics and ad measurement. This setting applies to all Game co., Ltd. sites. Details