Vulnerability in Sparx Systems Enterprise Architect software

CERT Polska has received a report about vulnerability in Sparx Systems Enterprise Architect software and participated in coordination of its disclosure.

The vulnerabilityCVE-2026-88794: Enterprise Architect is vulnerable to XML External Entity (XXE) injection in the XSLT Debugger feature. When a user loads a crafted XML file containing aDOCTYPEwith an external Document Type Definition (DTD) reference, the parser processes external entities, allowing an attacker to read arbitrary files from the victim's filesystem.

Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 17.1 but may also affect other versions.

We thank Hlib Yavorskyi working with TrendAI Zero Day Initiative for the responsible vulnerability report.