PatchTheCVECVE-2026-42100: Improper Handling of Syntactically Invalid Structure in Sparx Pro Cloud Server allows Denial of Service (DoS)
CVE-2026-42100 is a high-severity flaw (CVSS 7.5) affecting pro cloud server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Improper Handling of Syntactically Invalid Structure in Sparx Pro Cloud Server allows Denial of Service (DoS) attack to be executed by sending an specially crafted SQL query. This causes the Pro Cloud Server service to terminate unexpectedly. 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
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.7% (top 48%) |
| CISA exploited list | No |
| Weakness | CWE-228 |
| Published | 2026-05-19 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Official advisories
- CERT Polska: Vulnerabilities in Sparx Systems products 2026-05-19
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-42100?
pro cloud server: upgrade to newer than 6.1.167. Exact commands for each OS are on this page.
Is CVE-2026-42100 being exploited?
CVE-2026-42100 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-42100 affect?
CVE-2026-42100 affects pro cloud server. Severity is high (CVSS 7.5). Improper Handling of Syntactically Invalid Structure in Sparx Pro Cloud Server allows Denial of Service (DoS) attack to be executed by sending an specially crafted SQL query. This causes the Pro Cloud Server service to terminate unexpectedl
How urgent is CVE-2026-42100?
Priority 49/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2026-42097 HIGH 8.8 UPGRADE Sparx Pro Cloud Server requires authentication based on requested URL
- CVE-2026-42096 HIGH 8.8 UPGRADE Sparx Pro Cloud Server is vulnerable to Broken Access Control within communication with the database
- CVE-2026-42099 HIGH 7.5 UPGRADE Sparx Pro Cloud Server is vulnerable to a Race Condition in the /data_api/dl_internal_artifact.php endpoint