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TI-2026-36230 Aliases CVE-2026-48974

HomeBox: Forced Group Membership Without Consent in Homebox AddMember Handler

Priority LOW 24CWE-841Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

HomeBox is a home inventory and organization system. Prior to 0.26.0, POST /v1/groups/members invokes HandleGroupMemberAdd and GroupService.AddMember using a caller-supplied userID without requiring an owner role, an invitation token, target-user consent, or target-user notification. Any authenticated user can force another account into the caller's group, disclose the target user's email address and name through the resulting member list, and create the membership prerequisite used by a separate cross-group inventory-wipe vulnerability. This issue is fixed in version 0.26.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00294 22nd percentileScored 2026-11-07
Fix Fixed homebox (sysadminsmedia): 0.26.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
sysadminsmediahomeboxbefore 0.26.00.26.0Patch availableCNA
  • homebox Vendorsysadminsmedia Affected before 0.26.0 Fixed in 0.26.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:sysadminsmedia:homebox:*:*:*:*:*:*:*:*——sysadminsmedia
  • cpe:2.3:a:sysadminsmedia:homebox:*:*:*:*:*:*:*:* Versions — — ·sysadminsmedia

Remediation

  • Fix · CNA homebox (sysadminsmedia) Fixed in 0.26.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-48974

References

Other 3

  • TI-2026-36232 HomeBox: Cross-Tenant IDOR in Notifier Update Leaks Shoutrrr Credentials and Allows Webhook Hijack CVSS 3.1HIGH 8.1
  • TI-2026-36231 Authorization bypass in sysadminsmedia homebox CVSS 3.1HIGH 8.1
  • TI-2026-29010 HomeBox has Unauthorized API Access via Retained defaultGroup ID After Group Access Revocation CVSS 3.1HIGH 8.1
  • TI-2026-36094 HomeBox: Cross-Group Inventory Wipe in Homebox via Global Owner Role and X-Tenant Header Switching CVSS 3.1HIGH 8.1
  • TI-2026-22323 HomeBox has an Auth Rate Limit Bypass via IP Spoofing CVSS 3.1HIGH 7.4
  • TI-2026-85499 Email case sensitivity in HomeBox allows duplicate accounts CVSS 3.1MEDIUM 6.5
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences