Vulnerability-Lookup

CVE-2026-7891 (GCVE-0-2026-7891)

Vulnerability from cvelistv5 – Published: 2026-05-07 21:07 – Updated: 2026-09-22 10:29

This CVE has been retracted. Re-investigation confirmed the reported behavior is expected platform configuration and does not expose the protected attribute.

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{
  "containers": {
    "cna": {
      "providerMetadata": {
        "dateUpdated": "2026-09-22T10:29:24.756Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "rejectedReasons": [
        {
          "lang": "en",
          "value": "This CVE has been retracted. Re-investigation confirmed the reported behavior is expected platform configuration and does not expose the protected attribute."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b87402ff-ae37-4194-9dae-31abdbd6f217",
    "assignerShortName": "DIVD",
    "cveId": "CVE-2026-7891",
    "datePublished": "2026-05-07T21:07:22.206Z",
    "dateRejected": "2026-09-22T10:29:24.756Z",
    "dateReserved": "2026-05-05T21:09:08.070Z",
    "dateUpdated": "2026-09-22T10:29:24.756Z",
    "state": "REJECTED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-7891",
      "date": "2026-09-21",
      "epss": "0.00273",
      "percentile": "0.19918"
    },
    "nvd": {
      "cve": {
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Rejected reason: This CVE has been retracted. Re-investigation confirmed the reported behavior is expected platform configuration and does not expose the protected attribute."
          }
        ],
        "id": "CVE-2026-7891",
        "lastModified": "2026-09-22T11:17:25.527",
        "metrics": {},
        "published": "2026-05-07T22:16:37.070",
        "references": [],
        "sourceIdentifier": "productcert@siemens.com",
        "vulnStatus": "Rejected"
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-06-05T19:22:40+00:00",
      "cve": "CVE-2026-7891",
      "id": "CVE-2026-7891",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2026-7891",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7891.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "cna": {
          "providerMetadata": {
            "dateUpdated": "2026-09-22T10:29:24.756Z",
            "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
            "shortName": "siemens"
          },
          "rejectedReasons": [
            {
              "lang": "en",
              "value": "This CVE has been retracted. Re-investigation confirmed the reported behavior is expected platform configuration and does not expose the protected attribute."
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "b87402ff-ae37-4194-9dae-31abdbd6f217",
        "assignerShortName": "DIVD",
        "cveId": "CVE-2026-7891",
        "datePublished": "2026-05-07T21:07:22.206Z",
        "dateRejected": "2026-09-22T10:29:24.756Z",
        "dateReserved": "2026-05-05T21:09:08.070Z",
        "dateUpdated": "2026-09-22T10:29:24.756Z",
        "state": "REJECTED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-7891

Vulnerability from fkie_nvd - Published: 2026-05-07 22:16 - Updated: 2026-09-22 11:17

Severity

Summary

Rejected reason: This CVE has been retracted. Re-investigation confirmed the reported behavior is expected platform configuration and does not expose the protected attribute.

References

	URL	Tags

Impacted products

	Vendor	Product	Version

JSON

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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Rejected reason: This CVE has been retracted. Re-investigation confirmed the reported behavior is expected platform configuration and does not expose the protected attribute."
    }
  ],
  "id": "CVE-2026-7891",
  "lastModified": "2026-09-22T11:17:25.527",
  "metrics": {},
  "published": "2026-05-07T22:16:37.070",
  "references": [],
  "sourceIdentifier": "productcert@siemens.com",
  "vulnStatus": "Rejected"
}

GHSA-RRF3-MGV7-CW6M

Vulnerability from github – Published: 2026-05-08 00:31 – Updated: 2026-07-14 12:31

Details

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.

Severity

9.1 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A

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{
  "affected": [],
  "aliases": [
    "CVE-2026-7891"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-277"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-07T22:16:37Z",
    "severity": "CRITICAL"
  },
  "details": "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.",
  "id": "GHSA-rrf3-mgv7-cw6m",
  "modified": "2026-07-14T12:31:12Z",
  "published": "2026-05-08T00:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7891"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-814963.html"
    },
    {
      "type": "WEB",
      "url": "https://csirt.divd.nl/DIVD-2026-00006"
    },
    {
      "type": "WEB",
      "url": "https://www.divd.nl/mendix.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

ICSA-26-209-02

Vulnerability from csaf_cisa - Published: 2026-07-14 00:00 - Updated: 2026-07-28 06:00

Summary

Siemens Mendix Runtime

Scope

1 vulnerability in this advisory, including CVE-2026-7891.

CVE-2026-7891

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.

9.1 (Critical)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Known affected: 1 product

Open the full advisory

NCSC-2026-0229

Vulnerability from csaf_ncscnl - Published: 2026-07-14 13:45 - Updated: 2026-07-14 13:45

Summary

Kwetsbaarheden verholpen in Siemens producten

Scope

32 vulnerabilities in this advisory, including CVE-2026-7891.

CVE-2026-7891

A vulnerability in all Mendix Runtime versions stems from insufficient documentation on System.User entity access rules, potentially causing overly permissive access and exposing sensitive data or enabling privilege escalation.

9.1 (Critical)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Known affected: 167 products

Open the full advisory

SSA-814963

Vulnerability from csaf_siemens - Published: 2026-07-14 00:00 - Updated: 2026-09-22 00:00

Summary

SSA-814963: Insecure Inherited Permission in Mendix (Revoked)

Scope

1 vulnerability in this advisory, including CVE-2026-7891.

CVE-2026-7891

This CVE has been retracted. Re-investigation confirmed the reported behavior is expected platform configuration and does not expose the protected application-specific attribute.

Known not affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-7891 (GCVE-0-2026-7891)

FKIE_CVE-2026-7891

GHSA-RRF3-MGV7-CW6M

ICSA-26-209-02

NCSC-2026-0229

SSA-814963

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Sightings

Nomenclature

Related by attack behaviour