CVE-2026-111654
Received Received - Intake

Insecure Direct Object Reference in FastBee Through 2.1.0

Publication date: 2026-10-16

Last updated on: 2026-10-16

Assigner: VulnCheck

Description
FastBee through 2.1.0 contains an insecure direct object reference vulnerability that allows authenticated low-privilege users to access other users' device groups because GroupController queries lack owner checks. Attackers, including self-registered users, can supply sequential group IDs to read, overwrite, reassign, rewrite device associations of, or delete other users' groups.

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Meta Information

Published
2026-10-16
Last Modified
2026-10-16
Generated
2026-10-16
AI Q&A
2026-10-16
EPSS Evaluated
N/A
NVD
CVE-2026-111654
EUVD
EUVD-2026-103076

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
kerwincui FastBee 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

FastBee through version 2.1.0 has an insecure direct object reference vulnerability. This means authenticated low-privilege users can access other users' device groups because the GroupController does not verify ownership. Attackers, including self-registered users, can manipulate group IDs to read, modify, or delete other users' groups and device associations.

Impact Analysis

If you use FastBee, an attacker with low privileges could access your device groups, read sensitive data, overwrite configurations, reassign devices, or delete your groups entirely. This could lead to data loss, unauthorized access, or disruption of services.

Compliance Impact

This vulnerability could violate GDPR by exposing personal data or HIPAA by allowing unauthorized access to protected health information. It undermines data integrity and confidentiality requirements, potentially leading to compliance violations and legal consequences.

Mitigation Strategies

Upgrade FastBee to a version that includes proper owner checks in GroupController. If upgrading is not immediately possible, restrict access to authenticated users with appropriate privileges and monitor group ID sequences for suspicious activity.

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