{"id":"CVE-2026-85287","title":"HomeBox: Email Case-Sensitivity Bypass Allows Duplicate Account Creation and Login Denial of Service","summary":"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 un…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","cvssSource":"cna","cwe":["CWE-178","CWE-1024"],"vendor":"sysadminsmedia","product":"homebox","affected":["homebox < 0.27.0"],"published":"2026-11-05","updated":"2026-11-05","sourceUpdated":"2026-11-05T16:03:13.686Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-85287","references":[{"url":"https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-xqg9-6xxv-3452","label":"https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-xqg9-6xxv-3452"},{"url":"https://github.com/sysadminsmedia/homebox/commit/fbf8c8505b47c3d46aa6c17f7c657906b5b1b83a","label":"https://github.com/sysadminsmedia/homebox/commit/fbf8c8505b47c3d46aa6c17f7c657906b5b1b83a"},{"url":"https://github.com/sysadminsmedia/homebox/releases/tag/v0.27.0","label":"https://github.com/sysadminsmedia/homebox/releases/tag/v0.27.0"}],"tags":["cve.org"],"ingestedAt":"2026-11-05T22:38:31.322Z","slug":"CVE-2026-85287","body":"## Overview\n\nHomeBox 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.\n\n## Affected\n\n- `homebox < 0.27.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}