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CVE-2026-67678 critical CVSS 9.8

Unrestricted File Upload in RainyGao-Hithub DocSys (CVE-2026-67678)

Summary

Vulnerability in RainyGao-Hithub DocSys (CVE-2026-67678). Successful exploitation can lead to full system takeover.

Original description

The description as published by the source.

File Upload vulnerability in RainyGao-Hithub DocSys v.2.02.80 allows a remote attacker to execute arbitrary code

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-2026-67678 has been found in RainyGao-Hithub DocSys.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "RainyGao-Hithub DocSys CVE-2026-67678" on the vendor's site.

CVE-2026-67678 (RainyGao-Hithub DocSys) — CWE-434 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
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-434) exists in RainyGao-Hithub DocSys.

📍 Affected scope

Check the vendor advisory for the affected versions of RainyGao-Hithub DocSys.

🔥 Severity

Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.

🔧 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 request patterns matching this CVE's known IOCs. 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 RainyGao-Hithub DocSys を使っているサービスとバージョンを洗い出す。

  2. 2
    Post-deployment verification verify 
    Confirm patched version is live in production

    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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

References

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