CVE-2026-111654 FastBee through 2.1.0 IDOR via /iot/group By-ID Endpoints
Authenticated low-privilege users can access, modify, or delete other users' device groups due to missing owner checks in FastBee.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111654?
CVE-2026-111654 is a medium-severity missing authorization vulnerability in kerwincui FastBee, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-111654?
How do I fix CVE-2026-111654?
No fix has been published for CVE-2026-111654 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-111654 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111654 exists.
Sources
Also known as GHSA-gm3x-2x46-fc3v.