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High 7.7Published May 19, 2026

CVE-2026-42099Race Condition in Sparx Pro Cloud Server

Updated under an hour ago ()

Does this affect you?

It affects Sparx Systems Pro Cloud Server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
7.7 HIGH (v4.0, CNA)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
Weakness (CWE)
CWE-362
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
CERT-PL
NVD analysis
Analyzed
Record last updated
May 19, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Sparx Systems Pro Cloud Server
sparx_systems:pro_cloud_server (from the name)
through 6.1
CNA record
sparxsystems pro_cloud_server
sparxsystems:pro_cloud_server
through 6.1.167
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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