CVE-2026-24031
HIGH EPSS 21.1%
Published Mar 27, 20263mo ago · Modified Jun 17, 20262w ago
8.2 CVSS 3.1
Published Mar 27, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity High
Availability None
Threat Intelligence
EPSS Exploit Probability
21.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-89 SQL Injection Injection
Affected Products 2
| Vendor | Product | Version | Range |
|---|---|---|---|
| dovecot | dovecot | * | <2.4.3 |
| open-xchange | dovecot | * | <3.1.4 |
References 1
- documentation.open-xchange.com https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.