CVE-2026-85286
HomeBox: Timing Side-Channel in Login Endpoint Allows User Enumeration via Bcrypt Hashing Delay
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
HomeBox is a home inventory and organization system. Prior to 0.27.0, the POST /api/v1/users/login endpoint performs password-hash verification only when the submitted username matches an existing account, while unknown usernames return immediately. Although both paths return the same 401 unauthorized response, the processing-time discrepancy allows an unauthenticated remote attacker to distinguish registered email addresses; rate limiting only reduces the number of attempts per window. This issue is fixed in version 0.27.0.
| CWE | CWE-204 CWE-208 |
| Vendor | sysadminsmedia |
| Product | homebox |
| Published | Nov 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
sysadminsmedia / homebox
< 0.27.0