CVE-2026-24031
Summary
| CVE | CVE-2026-24031 |
|---|---|
| State | PUBLISHED |
| Assigner | OX |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-03-27 09:16:19 UTC |
| Updated | 2026-03-30 13:26:29 UTC |
| Description | Dovecot SQL based authentication can be bypassed when auth_username_chars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear auth_username_chars. If this is not possible, install latest fixed version. No publicly available exploits are known. |
Risk And Classification
Primary CVSS: v3.1 7.7 HIGH from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS: 0.000540000 probability, percentile 0.169150000 (date 2026-04-01)
Problem Types: CWE-89 | CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.7 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L |
| 3.1 | CNA | CVSS | 7.7 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Open-Xchange GmbH | OX Dovecot Pro | affected 3.1.0 semver | Not specified |
| CNA | Open-Xchange GmbH | OX Dovecot Pro | affected 2.4.0 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json | [email protected] | documentation.open-xchange.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.