PatchSiren cyber security CVE debrief
CVE-2026-42100 Sparx Systems CVE debrief
CVE-2026-42100 is a high-severity denial-of-service issue affecting Sparx Pro Cloud Server. According to the supplied description, a specially crafted SQL query can trigger improper handling of syntactically invalid structure and cause the Pro Cloud Server service to terminate unexpectedly. The corpus confirms vulnerability in version 6.1 (build 167) and earlier tested builds, but it does not establish a complete affected version range.
- Vendor
- Sparx Systems
- Product
- Pro Cloud Server
- CVSS
- HIGH 7.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-19
- Original CVE updated
- 2026-05-19
- Advisory published
- 2026-05-19
- Advisory updated
- 2026-05-19
Who should care
Administrators, security teams, and application owners running Sparx Pro Cloud Server should treat this as an availability risk, especially where the server is reachable by authenticated users, service accounts, or integrated tooling that can submit SQL queries. Teams that rely on PCS for development, modeling, or shared project access should prioritize review.
Technical summary
The provided CVE data maps this issue to a network-reachable DoS with low attack complexity and no user interaction. The CVSS v4 vector indicates privileges required (PR:L) and an availability-only impact (VA:H), consistent with a query-triggered crash rather than a confidentiality or integrity breach. The root problem is improper handling of syntactically invalid structure in SQL input. The source corpus only confirms affected testing on version 6.1 (build 167) and below; later versions were not tested.
Defensive priority
High. A service crash in a shared cloud/server component can interrupt multiple dependent workflows, and the attack appears low-complexity once an actor can reach the relevant SQL query path. Because the complete vulnerable range is unknown in the supplied corpus, defensive teams should assume exposure may be broader until vendor guidance confirms otherwise.
Recommended defensive actions
- Inventory all Sparx Pro Cloud Server deployments and record exact versions/builds.
- Restrict access to SQL/query interfaces to trusted networks and authenticated administrative paths only.
- Monitor for unexpected PCS service terminations, crashes, and automatic restarts; alert on repeated failures.
- Apply vendor patches or upgrades as soon as an advisory or fixed build is confirmed.
- Reduce exposure by disabling unnecessary integrations, limiting remote access, and placing PCS behind network controls such as ACLs or VPN-only access.
- Coordinate with vendor support or the relevant security advisory source for confirmation of the full affected version range and remediation guidance.
Evidence notes
The source item is an official NVD entry for CVE-2026-42100 published and modified on 2026-05-19. NVD lists the vulnerability status as Awaiting Analysis and includes references to CERT.PL, an Efigo blog post, the Sparx Systems Pro Cloud Server page, and a third-party writeup. The supplied description states that only version 6.1 (build 167) and below were tested and confirmed vulnerable, while other versions were not tested. The corpus also contains a vendor-attribution mismatch: the record lists Unknown Vendor with low confidence, so product/vendor naming should be treated cautiously. Two referenced URLs also use CVE-2026-42096 in the path, so linkage to CVE-2026-42100 should be considered provisional unless independently verified.
Official resources
Public CVE record published on 2026-05-19. The supplied description says the vendor was notified early but did not provide vulnerability details or a complete vulnerable version range. This debrief omits exploit instructions and relies only