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CVE-2026-42097— Authentication Bypass in Sparx Pro Cloud Server

Quick assessment

Affected
Sparx Systems Pro Cloud Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.91% · P59

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
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

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III. Intelligence Information for CVE-2026-42097

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Vendor Advisories for CVE-2026-42097 (1)

Security Blog Posts for CVE-2026-42097 (2)

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
Same vendor: Sparx Systems
Same weakness: CWE-639

V. Comments for CVE-2026-42097

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