CVE-2026-42097
Authentication Bypass in Sparx Pro Cloud Server
- State
- Published
- Severity
- 9.3 Critical
- Published
- May 19, 2026
- Updated
- May 19, 2026
- Reserved
- Apr 24, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | CERT-PL |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
Pro Cloud ServerSparx Systems |
|
References
- https://cert.pl/en/posts/2026/05/CVE-2026-42096third-party-advisory
- https://sparxsystems.com/products/procloudserver/product
- https://sploit.tech/2026/05/19/Sparx-Enterprise-Architect-PCS.htmltechnical-description
- https://efigo.pl/blog/CVE-2026-42096/third-party-advisory
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