CVE-2026-48826 HomeBox: Cross-Group Inventory Wipe in Homebox via Global Owner Role and X-Tenant Header Switching
A user can permanently delete another group's inventory by manipulating the tenant header due to flawed global owner role checks.
- 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-2026-48826?
CVE-2026-48826 is a high-severity missing authorization vulnerability in sysadminsmedia homebox, published on 21 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
HomeBox is a home inventory and organization system. Prior to 0.26.0, HandleWipeInventory in backend/app/api/handlers/v1/v1_ctrl_actions.go authorizes POST /v1/actions/wipe-inventory through the global ctx.User.IsOwner value instead of the caller's role in the active group, while the active group is selected through the X-Tenant request header. Because every self-registered user who creates a group receives the global owner value, a user who is also a member of another group can select that group with X-Tenant and permanently delete its complete inventory, which is not recoverable without external backups. This issue is fixed in version 0.26.0.
Which versions are affected by CVE-2026-48826?
How do I fix CVE-2026-48826?
No fix has been published for CVE-2026-48826 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-2026-48826 being exploited?
There is no known exploitation of CVE-2026-48826 in the wild and no public exploit code.
Sources
Also known as GHSA-559j-7w3w-4fr7.