SB2026052744 - Multiple vulnerabilities in Sparx Pro Cloud Server

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026052744

SB2026052744 - Multiple vulnerabilities in Sparx Pro Cloud Server

Published: May 27, 2026

Security Bulletin ID SB2026052744
CSH Severity
High
Patch available
NO
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2026-42100)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in the /SparxCloudLink.sseap endpoint when parsing SQL queries containing an unterminated escape sequence. A remote attacker can send a specially crafted SQL query to cause a denial of service.

The service terminates unexpectedly when an escape sequence starts with an opening curly brace without a matching closing brace.


2) Race condition (CVE-ID: CVE-2026-42099)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to a race condition in the WebEA /data_api/dl_internal_artifact.php endpoint when downloading internal artifacts to a web-accessible temporary file. A remote user can inject a malicious PHP file into the repository and trigger concurrent requests to execute arbitrary code.

Exploitation requires Pro Cloud Server to be configured with the WebEA php application.


3) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2026-42097)

CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber


The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper authentication in the SparxCloudLink.sseap request authentication logic when handling requests without the model query parameter. A remote attacker can omit the model query parameter while supplying the model name in the POST body to bypass authentication.

The issue affects both tls and non-tls ports.


4) Improper access control (CVE-ID: CVE-2026-42096)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber


The vulnerability allows a remote attacker to execute arbitrary SQL queries.

The vulnerability exists due to improper access control in the SparxCloudLink.sseap SQL query handling when processing crafted encrypted SQL requests. A remote attacker can obtain the embedded symmetric key from the client and send custom SQL queries to execute arbitrary SQL queries.

The issue affects database operations permitted by the configured external database user.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References