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.
References
| Link | Resource |
|---|---|
| https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
29 Apr 2026, 19:40
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Open-xchange
Open-xchange dovecot Dovecot Dovecot dovecot |
|
| CPE | cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:* cpe:2.3:a:open-xchange:dovecot:*:*:*:*:pro:*:*:* |
|
| References | () https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json - Vendor Advisory |
27 Mar 2026, 09:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-03-27 09:16
Updated : 2026-04-29 19:40
NVD link : CVE-2026-0394
Mitre link : CVE-2026-0394
CVE.ORG link : CVE-2026-0394
JSON object : View
Products Affected
open-xchange
- dovecot
dovecot
- dovecot
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')