#VU124724 Path traversal in Dovecot and OX Dovecot Pro - CVE-2026-0394
Published: April 1, 2026
Vulnerability identifier: #VU124724
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-0394
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Dovecot
OX Dovecot Pro
Dovecot
OX Dovecot Pro
Software vendor:
Dovecot
Dovecot
Description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper limitation of a pathname to a restricted directory ('Path Traversal') in passwd-file passdb when processing domain-based authentication requests. A remote attacker can send a specially crafted request with malicious domain parameter to disclose sensitive information.
The server must be configured to use per-domain passwd files placed one path component above /etc or with slash in allowed characters.
Remediation
Install security update from vendor's website.