CVE-2026-85287

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    CVE-2026-85287

    Published: 5 Nov 2026Last Modified: 7 Nov 2026

    Summary: HomeBox: Email Case-Sensitivity Bypass Allows Duplicate Account Creation and Login Denial of Service

    Details: 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.

    References: https://github.com/sysadminsmedia/homebox/releases/tag/v0.27.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85287.json, https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-xqg9-6xxv-3452, https://nvd.nist.gov/vuln/detail/CVE-2026-85287, https://github.com/sysadminsmedia/homebox/commit/fbf8c8505b47c3d46aa6c17f7c657906b5b1b83a

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -bae3fb4e9b84672e4e64da15e57a14217aea7c13

    Affected versions

    v0.26.2
    v0.26.1
    v0.26.0
    v0.26.0-rc.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-85287 | CVE-DB