CVE-2026-48974: medium-severity vulnerability in sysadminsmedia homebox
HomeBox: Forced Group Membership Without Consent in Homebox AddMember Handler
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected products
sysadminsmedia · homeboxRelated CVEs — sysadminsmedia homebox
In the same product, most dangerous first.
CVE-2026-48826HIGHHomeBox: Cross-Group Inventory Wipe in Homebox via Global Owner Role and X-Tenant Header SwitchingEPSS 0.5%CVE-2026-48975HIGHHomeBox: Cross-Tenant IDOR in MaintenanceEntry Update and Delete Allows Tampering and Destruction of Any User's Maintenance History in HomeboxEPSS 0.5%CVE-2026-48976HIGHHomeBox: Cross-Tenant IDOR in Notifier Update Leaks Shoutrrr Credentials and Allows Webhook HijackEPSS 0.4%CVE-2026-55473MEDIUMHomeBox: Notifier SSRF guard misses NAT64 prefixes (64:ff9b::/96, 64:ff9b:1::/48) — generic:// URL reaches cloud metadata on NAT64 egressEPSS 0.4%CVE-2025-53108MEDIUMHomeBox Missing User AuthorizationEPSS 0.3%CVE-2026-27981HIGHHomeBox has an Auth Rate Limit Bypass via IP SpoofingEPSS 0.3%