CVEvulnerability
CVE-2026-24031
8.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-03-27
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.7 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
- CVSS 3.1 ([email protected])
- 8.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.7 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
- Weaknesses
- CWE-89
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.
Affected configurations
• dovecot dovecot (< 2.4.3)
• open-xchange dovecot (< 3.1.4)
Related
Weakness · CWE (1)
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command weakness
References
- https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-24031 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2452181 bugzilla.redhat.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24031.json security.access.redhat.com