Medium severity6.3NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-111654
CVE-2026-111654
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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Affected products
1Patches
Vulnerability mechanics
References
5- github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-open-api/src/main/java/com/fastbee/data/controller/GroupController.javanvd
- github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/service/impl/GroupServiceImpl.javanvd
- github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-service/fastbee-iot-service/src/main/resources/mapper/iot/GroupMapper.xmlnvd
- hackmd.io/@hieuPenguinnn/fastbee-device-group-cross-user-idornvd
- www.vulncheck.com/advisories/fastbee-through-2.1.0-idor-via-iot-group-by-id-endpointsnvd
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