CVE-2021-42015: Mendix

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability has been identified in Mendix Applications using Mendix 7 (All versions < V7.23.26), Mendix Applications using Mendix 8 (All versions < V8.18.12), Mendix Applications using Mendix 9 (All versions < V9.6.1). Applications built with affected versions of Mendix Studio Pro do not prevent file documents from being cached when files are opened or downloaded using a browser. This could allow a local attacker to read those documents by exploring the browser cache.

Affected products

• Mendix Mendix: before 7.23.26 (fixed in 7.23.26); from 8.0.0, before 8.18.12 (fixed in 8.18.12); from 9.0.0, before 9.6.1 (fixed in 9.6.1)

Published 2021-11-09. Last modified 2026-06-17.