Information disclosure in Dovecot and OX Dovecot Pro - CVE-2025-59031
Published: April 1, 2026
Vulnerability identifier: #VU124723
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-59031
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Dovecot
Affected software:
Dovecot
OX Dovecot Pro
Dovecot
OX Dovecot Pro
Detailed vulnerability description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper input validation in decode2text.sh script when parsing OOXML attachments during indexing. A remote attacker can send a specially crafted OOXML document containing symlinks to disclose sensitive information.
The attacker must be able to upload email attachments that are processed by the indexing system.
How to mitigate CVE-2025-59031
Install security update from vendor's website.