CVE-2026-42099— Sparx Systems Sparx Pro Cloud Server 竞争条件问题漏洞

Race Condition in Sparx Pro Cloud Server

Sparx Pro Cloud Server is vulnerable to a Race Condition in the /data_api/dl_internal_artifact.php endpoint. The application downloads the properties of the object pointed by guid parameter and saves loaded content in current location (__DIR__) under the specified name. An attacker with repository access can control both the filename and file contents, allowing the creation of a malicious PHP file in a current directory. Although the file is deleted after processing, a race condition exists: if the response transmission is delayed (e.g., via a large file or slow client connection), the file remains accessible. During this window, the attacker can issue a second request to execute the malicious PHP file, resulting in remote code execution. 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.

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

使用共享资源的并发执行不恰当同步问题(竞争条件)

Sparx Systems Sparx Pro Cloud Server 竞争条件问题漏洞

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竞争条件问题漏洞，该漏洞源于/data_api/dl_internal_artifact.php端点存在竞争条件，攻击者可以控制文件名和文件内容，导致远程代码执行。

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