Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-85287— HomeBox: Email Case-Sensitivity Bypass Allows Duplicate Account Creation and Login Denial of Service

Quick assessment

Affected
sysadminsmedia homebox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HomeBox 是一个家庭库存与组织管理系统。在 0.27.0 版本之前， 接口与 字段的唯一性约束将电子邮件地址视为区分大小写，而 HomeBox 在登录时却使用不区分大小写的查询方式。一名未认证的攻击者若知晓受害者的邮箱地址，即可注册一个大小写不同的变体，从而在数据库中创建重复记录。这会导致两个邮箱变体在登录时均返回 401 错误，使受害者无法访问系统，同时绕过了“每个邮箱仅限一个账户”的安全策略。该问题已在 0.27.0 版本中修复。

CVSS 6.5 · Medium
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-85287

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
HomeBox: Email Case-Sensitivity Bypass Allows Duplicate Account Creation and Login Denial of Service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
大小写敏感处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
sysadminsmedia homebox < 0.27.0 -

II. Public POCs for CVE-2026-85287

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-85287

请登录查看更多情报信息。

Other References for CVE-2026-85287 (2)

Same Patch Batch · sysadminsmedia · 2026-11-05 · 3 CVEs total

CVE-2026-75599 5.4 MEDIUM HomeBox: Stored XSS via `javascript:` URI in Custom Entity Fields
CVE-2026-85286 3.7 LOW HomeBox: Timing Side-Channel in Login Endpoint Allows User Enumeration via Bcrypt Hashing

IV. Related Vulnerabilities

Same product: homebox
Same vendor: sysadminsmedia
Same weakness: CWE-178