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Ox Dovecot Pro CVE-2025-59031

| EUVDEUVD-2025-209090 MEDIUM
Information Exposure (CWE-200)
2026-03-27 OX
Information Disclosure Ox Dovecot Pro
4.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Ubuntu
LOW
qualitative
SUSE
MEDIUM
qualitative
Red Hat
4.3 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

4
Patch released
Mar 31, 2026 - 13:49 nvd
Patch available
EUVD ID Assigned
Mar 27, 2026 - 08:30 euvd
EUVD-2025-209090
Analysis Generated
Mar 27, 2026 - 08:30 vuln.today
CVE Published
Mar 27, 2026 - 08:10 nvd
MEDIUM 4.3

DescriptionCVE.org

Dovecot has provided a script to use for attachment to text conversion. This script unsafely handles zip-style attachments. Attacker can use specially crafted OOXML documents to cause unintended files on the system to be indexed and subsequently ending up in FTS indexes. Do not use the provided script, instead, use something else like FTS tika. No publicly available exploits are known.

AnalysisAI

Dovecot's text conversion script for OOXML attachments unsafely processes zip-style files, allowing authenticated attackers to index unintended system files and contaminate full-text search indexes with sensitive content. Open-Xchange Dovecot Pro is affected. The vulnerability results in information disclosure (CWE-200) with a CVSS score of 4.3 and requires prior authentication; no public exploit identified at time of analysis.

Technical ContextAI

Dovecot provides a script designed to convert attached documents to plaintext for full-text search (FTS) indexing. The script improperly handles OOXML documents, which are actually ZIP archives containing XML files. An attacker can craft a malicious OOXML file with directory traversal or symbolic link entries that cause the extraction process to access arbitrary files on the system outside the intended attachment scope. This violates the CWE-200 (Information Exposure) classification because unintended file contents become indexed and accessible through FTS mechanisms. The affected product is identified via CPE cpe:2.3:a:open-xchange_gmbh:ox_dovecot_pro:*:*:*:*:*:*:*:* indicating all versions of OX Dovecot Pro may be vulnerable if the unsafe script is deployed.

RemediationAI

Do not use the provided Dovecot attachment-to-text conversion script. Instead, deploy alternative FTS solutions such as FTS Tika, which includes proper safeguards for ZIP archive extraction and does not suffer from unsafe file access during OOXML processing. Organizations currently using the vulnerable script should immediately replace it or disable script-based attachment indexing and switch to Tika or equivalent. Review FTS indexes already created with the unsafe script for potential exposure of sensitive files and consider re-indexing with a secure solution. Consult the vendor advisory at https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json for configuration guidance on migrating to Tika or other compliant FTS backends.

More in Ox Dovecot Pro

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CVE-2026-27851 CRITICAL
9.1 May 12

Authentication-layer injection in OX Dovecot Pro (versions up to and including 2.4.3 and 3.1.4) arises from a flaw in th
CVE-2026-24031 HIGH
8.2 Mar 27

Authentication bypass and user enumeration in OX Dovecot Pro (versions up to and including 3.1.0 and the 2.4.x line up t
CVE-2025-59032 HIGH
7.5 Mar 27

OX Dovecot Pro ManageSieve service crashes when processing AUTHENTICATE commands with SASL initial responses using liter
CVE-2026-27858 HIGH
7.5 Mar 27

OX Dovecot Pro managesieve-login process crashes repeatedly due to memory exhaustion triggered by unauthenticated attack
CVE-2026-27857 HIGH
7.5 Mar 27

Remote memory-exhaustion denial of service in OX Dovecot Pro (versions up to and including 2.3.0) lets an unauthenticate
CVE-2026-27856 MEDIUM
5.9 Mar 27

OX Dovecot Pro's doveadm HTTP service is vulnerable to timing oracle attacks during credential verification, allowing re
CVE-2025-59028 MEDIUM
5.3 Mar 27

OX Dovecot Pro authentication server becomes disconnected when processing invalid base64 SASL data, causing all concurre
CVE-2026-0394 MEDIUM
5.3 Mar 27

Path traversal in OX Dovecot Pro allows unauthenticated remote attackers to read arbitrary files such as /etc/passwd whe
CVE-2026-27859 MEDIUM
5.3 Mar 27

OX Dovecot Pro mail delivery processes consume excessive CPU resources when processing mail messages containing abnormal
CVE-2026-42006 MEDIUM
4.3 May 12

OX Dovecot Pro allows authenticated attackers to cause uncontrolled memory consumption and denial of service via excessi
CVE-2026-40020 LOW
3.1 May 12

OX Dovecot Pro is vulnerable to IMAP SETACL command injection that allows authenticated users to bypass the imap_acl_all

Same weakness CWE-200 – Information Exposure

View all
CVE-2016-6415 HIGH POC
7.5
CVE-2013-7331 MEDIUM POC
6.5
CVE-2025-31125 MEDIUM POC
5.3
CVE-2025-11749 CRITICAL POC
9.8
CVE-2017-16894 HIGH POC
7.5
CVE-2017-11165 CRITICAL POC
9.8
CVE-2016-2388 MEDIUM POC
5.3
CVE-2016-1561 HIGH POC
7.5

Same technique Information Disclosure

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CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5
CVE-2014-6324 HIGH POC
8.8
CVE-2023-7028 CRITICAL POC
10.0
CVE-2017-0213 HIGH POC
7.3

Vendor StatusVendor

Ubuntu

Priority: Low
dovecot
Release Status Version
trusty needed -
xenial needed -
bionic needed -
focal needed -
jammy needed -
noble needed -
questing needed -
upstream released 2.4.3

Debian

dovecot
Release Status Fixed Version Urgency
bullseye vulnerable 1:2.3.13+dfsg1-2+deb11u1 -
bullseye (security) vulnerable 1:2.3.13+dfsg1-2+deb11u2 -
bookworm, bookworm (security) vulnerable 1:2.3.19.1+dfsg1-2.1+deb12u1 -
trixie vulnerable 1:2.4.1+dfsg1-6+deb13u3 -
trixie (security) vulnerable 1:2.4.1+dfsg1-6+deb13u1 -
forky, sid vulnerable 1:2.4.2+dfsg1-4 -
(unstable) fixed (unfixed) unimportant

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Module for Server Applications 15 SP7 Fixed
SUSE Linux Enterprise Module for Server Applications 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP7 Fixed

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CVE-2025-59031 vulnerability details – vuln.today
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