CVE-2026-42097— Authentication Bypass in Sparx Pro Cloud Server
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Sparx Systems | Pro Cloud Server | ≤ 6.1 | affected |
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I. Basic Information for CVE-2026-42097
Vulnerability Information
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Vulnerability Title
Authentication Bypass in Sparx Pro Cloud Server
Source: NVD (National Vulnerability Database)
Vulnerability Description
Sparx Pro Cloud Server requires authentication based on requested URL. An attacker can omit the "model" query parameter and send the model name only in the binary blob in POST request allowing SQL query execution without authentication. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.1 (build 167) and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sparx Systems Sparx Pro Cloud Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sparx Systems Sparx Pro Cloud Server是澳大利亚Sparx Systems公司的一款支持模型仓库远程访问与协作管理的建模服务平台。 Sparx Pro Cloud Server 6.1版本及之前版本存在安全漏洞，该漏洞源于基于请求URL的身份验证机制缺陷，攻击者可以省略model查询参数，在POST请求的二进制数据块中发送模型名称，导致无需身份验证即可执行SQL查询。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Sparx Systems | Pro Cloud Server | 0 ~ 6.1 | - |
II. Public POCs for CVE-2026-42097
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-42097 (1)
Security Blog Posts for CVE-2026-42097 (2)
- Vulnerabilities in Sparx Systems products | CERT Polskathird-party-advisory
- CVE-2026-42096 - EFIGO - Cyberbezpieczeństwo i ochrona danychthird-party-advisory
Vendor Pages for CVE-2026-42097 (1)
Same Patch Batch · Sparx Systems · 2026-05-19 · 5 CVEs total
| CVE-2026-42100 | DoS in Sparx Pro Cloud Server | |
| CVE-2026-42096 | Broken Access Control in Sparx Pro Cloud Server | |
| CVE-2026-42098 | Authorization Bypass in Sparx Enterprise Architect | |
| CVE-2026-42099 | Race Condition in Sparx Pro Cloud Server |
IV. Related Vulnerabilities
Same product: Pro Cloud Server
- CVE-2026-42100
DoS in Sparx Pro Cloud Server - CVE-2026-42099
Race Condition in Sparx Pro Cloud Server - CVE-2026-42096
Broken Access Control in Sparx Pro Cloud Server - CVE-2025-4377
Path traversal vulnerability in Sparx Pro Cloud Server WebEA - CVE-2025-4376
Cross-Site Scripting vulnerability in Model Search in Pro Cl
Same vendor: Sparx Systems
Same weakness: CWE-639
- CVE-2026-40127
Authorization Bypass Through User-Controlled Key in OutSyste - CVE-2026-9306
QuantumNous new-api Midjourney Image Relay Endpoint relay-ro - CVE-2026-35430
Azure Privileged Identity Management (PIM) Elevation of Priv - CVE-2026-39967
TypeBot: Cross-Typebot Result Data Access via Missing typebo - CVE-2026-28444
Typebot: IDOR in Result Logs Endpoint Allows Cross-Workspace
V. Comments for CVE-2026-42097
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