{"id":"CVE-2026-85287","published":"2026-11-05T17:18:22.143","lastModified":"2026-11-05T17:18:22.143","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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","cwes":["CWE-178","CWE-1024"],"vendors":[],"products":[],"references":[{"url":"https://github.com/sysadminsmedia/homebox/commit/fbf8c8505b47c3d46aa6c17f7c657906b5b1b83a","tags":[]},{"url":"https://github.com/sysadminsmedia/homebox/releases/tag/v0.27.0","tags":[]},{"url":"https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-xqg9-6xxv-3452","tags":[]}],"exploitRefs":[{"url":"https://github.com/sysadminsmedia/homebox/commit/fbf8c8505b47c3d46aa6c17f7c657906b5b1b83a","tags":[]},{"url":"https://github.com/sysadminsmedia/homebox/releases/tag/v0.27.0","tags":[]},{"url":"https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-xqg9-6xxv-3452","tags":[]}],"hasPoc":true,"ai":null}