Back
CVE-2026-85287
HomeBox: Email Case-Sensitivity Bypass Allows Duplicate Account Creation and Login Denial of Service
Medium6.5EPSS 0.29%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
| NVDNVD · Received | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
- EPSS (exploitation in 30 days)
- 0.29% · top 78% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
- affected < 0.27.0
References (3)
- https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-xqg9-6xxv-3452 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/sysadminsmedia/homebox/commit/fbf8c8505b47c3d46aa6c17f7c657906b5b1b83a (opens in a new tab)x_refsource_MISC
- https://github.com/sysadminsmedia/homebox/releases/tag/v0.27.0 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-85287)Record last updated .