What is CVE-2026-7891?

CVE-2026-7891 is a critical-severity vulnerability in Divd Verysecureapp, classified under Insecure Inherited Permissions. CVSS score: 9.1/10. Published 2026-05-07.

How severe is CVE-2026-7891?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Divd Verysecureapp

CVE-2026-7891

A vulnerability has been identified in Mendix Runtime (All versions). Mendix documentation for access rules does not adequately describe the special behavior of the System.User entity, leaving developers without sufficient guidance to configure access rules securely. This documentation gap may lead application developers to unknowingly apply overly permissive access rules to System.User, resulting in unintended exposure of sensitive user data or privilege escalation within deployed Mendix applications.

EPSS: 0.003 (19.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Divd Verysecureapp — versions 0
Siemens Mendix Runtime — versions 0

Weakness classification (CWE)

CWE-277 — Insecure Inherited Permissions

References

productcert@siemens.com (vendor-advisory)
productcert@siemens.com (mitigation)
productcert@siemens.com

Frequently asked questions

What is CVE-2026-7891?: CVE-2026-7891 is a critical-severity vulnerability in Divd Verysecureapp, classified under Insecure Inherited Permissions. CVSS score: 9.1/10. Published 2026-05-07.
How severe is CVE-2026-7891?: Critical severity. CVSS v3 base score is 9.1 out of 10.