CVE-2026-0394
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I. Basic Information for CVE-2026-0394
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
When dovecot has been configured to use per-domain passwd files, and they are placed one path component above /etc, or slash has been added to allowed characters, path traversal can happen if the domain component is directory partial. This allows inadvertently reading /etc/passwd (or some other path which ends with passwd). If this file contains passwords, it can be used to authenticate wrongly, or if this is userdb, it can unexpectly make system users appear valid users. Upgrade to fixed version, or use different authentication scheme that does not rely on paths. Alternatively you can also ensure that the per-domain passwd files are in some other location, such as /etc/dovecot/auth/%d. No publicly available exploits are known.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Open-Xchange OX Dovecot Pro 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open-Xchange OX Dovecot Pro是德国Open-Xchange公司的一个邮件存储与投递系统。 Open-Xchange OX Dovecot Pro存在安全漏洞，该漏洞源于配置使用每域passwd文件时存在路径遍历问题，可能导致错误读取/etc/passwd文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Open-Xchange GmbH | OX Dovecot Pro | 0 ~ 2.3.0 | - |
II. Public POCs for CVE-2026-0394
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Open-Xchange GmbH · 2026-03-27 · 11 CVEs total
| CVE-2026-24031 | 7.7 HIGH | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2026-27858 | 7.5 HIGH | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2025-59032 | 7.5 HIGH | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2026-27856 | 7.4 HIGH | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2026-27855 | 6.8 MEDIUM | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2026-27859 | 5.3 MEDIUM | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2025-59028 | 5.3 MEDIUM | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2026-27857 | 4.3 MEDIUM | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2025-59031 | 4.3 MEDIUM | Open-Xchange OX Dovecot Pro 安全漏洞 |
| CVE-2026-27860 | 3.7 LOW | Open-Xchange OX Dovecot Pro 安全漏洞 |
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V. Comments for CVE-2026-0394
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