CVE-2026-7891
Deferred Deferred - Pending Action
Unauthorized Data Exposure in VerySecureApp via Mendix Studio Pro

Publication date: 2026-05-07

Last updated on: 2026-05-07

Assigner: Dutch Institute for Vulnerability Disclosure

Description
The VerySecureApp made by DIVD using Mendix Studio Pro 11.8.0 Beta allows unintended data exposure due to authorization misconfiguration. The VerySecureApp allows anonymous users of the MyFirstModule with the anonymous user role to gain access to all stored records, even though no access rights are explicitly configured on that role. Anonymous users are required to make a Mendix Entity available publicly. All versions of Mendix Studio Pro up to 11.8.0 Beta silently make an Anonymous user role follow user inheritance rules, without mentioning this explicitly in the documentation.
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Meta Information
Published
2026-05-07
Last Modified
2026-05-07
Generated
2026-06-19
AI Q&A
2026-05-08
EPSS Evaluated
2026-06-18
NVD
CVE-2026-7891
EUVD
EUVD-2026-28463
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
divd verysecureapp *
mendix mendix_studio_pro to 11.8.0_beta (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-277 A product defines a set of insecure permissions that are inherited by objects that are created by the program.
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Executive Summary

The vulnerability in VerySecureApp, created using Mendix Studio Pro 11.8.0 Beta, is due to an authorization misconfiguration. Specifically, anonymous users assigned the anonymous user role in the MyFirstModule can access all stored records, even though no explicit access rights are configured for that role. This happens because Mendix Studio Pro versions up to 11.8.0 Beta silently apply user inheritance rules to the anonymous user role without documenting this behavior, leading to unintended data exposure.

Impact Analysis

This vulnerability can lead to unauthorized data exposure, allowing anonymous users to access all stored records in the affected module. Since no authentication or explicit permissions are required, sensitive or confidential information could be accessed by anyone, potentially leading to data breaches, loss of privacy, and damage to the organization's reputation.

Compliance Impact

The vulnerability in VerySecureApp allows anonymous users to access all stored records due to an authorization misconfiguration. This unintended data exposure can lead to unauthorized access to sensitive personal or protected health information.

Such unauthorized data exposure can result in non-compliance with data protection regulations like GDPR and HIPAA, which require strict access controls and protection of personal and health data.

Mitigation Strategies

To mitigate this vulnerability, ensure that anonymous user roles do not have unintended access rights. Specifically, review and correct the authorization configuration in the VerySecureApp, especially for the MyFirstModule, to prevent anonymous users from accessing all stored records.

Additionally, avoid making Mendix Entities publicly available to anonymous users unless explicitly intended and properly secured.

Consider upgrading Mendix Studio Pro to a version later than 11.8.0 Beta where this issue is addressed or apply any patches provided by the vendor.

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