Vulnerability in Sysadminsmedia Homebox

CVE-2026-85286

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.

Published .

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-85286?
CVE-2026-85286 is a low-severity vulnerability in Sysadminsmedia Homebox, classified under Observable Response Discrepancy. CVSS score: 3.7/10. Published 2026-11-05.
How severe is CVE-2026-85286?
Low severity. CVSS v3 base score is 3.7 out of 10.