HomeBox is a home inventory and organization system. Prior to 0.27.0, POST /api/v1/users/register and the users.email uniqueness constraint treat email addresses as case-sensitive while HomeBox uses a case-insensitive login lookup. An unauthenticated attacker who knows a victim's email can register a differently cased variant, creating duplicate rows that cause login to return 401 for both variants and deny the victim access, while also bypassing the one-account-per-email policy. This issue is fixed in version 0.27.0.
History

Thu, 05 Nov 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Sysadminsmedia
Sysadminsmedia homebox
Vendors & Products Sysadminsmedia
Sysadminsmedia homebox

Thu, 05 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
Description HomeBox is a home inventory and organization system. Prior to 0.27.0, POST /api/v1/users/register and the users.email uniqueness constraint treat email addresses as case-sensitive while HomeBox uses a case-insensitive login lookup. An unauthenticated attacker who knows a victim's email can register a differently cased variant, creating duplicate rows that cause login to return 401 for both variants and deny the victim access, while also bypassing the one-account-per-email policy. This issue is fixed in version 0.27.0.
Title HomeBox: Email Case-Sensitivity Bypass Allows Duplicate Account Creation and Login Denial of Service
Weaknesses CWE-1024
CWE-178
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-11-05T16:03:13.686Z

Updated: 2026-11-05T16:03:13.686Z

Reserved: 2026-09-03T16:37:49.262Z

Link: CVE-2026-85287

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-05T17:18:22.143

Modified: 2026-11-05T17:18:22.143

Link: CVE-2026-85287

cve-icon Redhat

No data.