Our takeCISA: Siemens Mendix docs don't adequately describe System.User access-rule behavior, so developers can unknowingly apply overly permissive rules and expose user data. Building on Mendix? Review those rules now.Cyber Resilience desk
Sources (2)
- cisa_advisories · cisa_advisories
- cisa_ics · cisa_ics
What this means for you — Security leader:If your organization builds or runs apps on Siemens Mendix, review access rules on the System.User entity against the CISA/Siemens advisory and tighten any overly permissive grants that could expose user data. Confirm developers have the updated guidance before the next release cycle.
What this means for you — Lean IT orgs:If you use a Mendix-built app (yours or a vendor’s), ask whoever maintains it whether System.User access rules were checked against the new advisory; if you don’t use Mendix, you can ignore this.
What this means for you — MSP:Inventory clients on Mendix Runtime, flag apps with broad System.User access rules, and have delivery teams re-check those rules against the advisory before the next change window.
What this means for you — Researcher:CISA ICSA-26-209-02: Mendix docs under-specify System.User access-rule behavior, so developers can ship overly permissive rules and expose user data—compare the advisory diffs and any CSAF detail to how System.User is actually enforced.