CVE-2026-40020
- State
- Published
- Severity
- 3.1 Low
- Published
- May 12, 2026
- Updated
- May 12, 2026
- Reserved
- Apr 8, 2026
Description
Attacker can use the IMAP SETACL command to inject the anyone permission to user's dovecot-acl file even if imap_acl_allow_anyone=no. This causes folders to be spammed to all users. The impact is limited to being able to spam folders to other users, no unexpected access is gained. Install to fixed version. No publicly available exploits are known.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.1 Low | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L | OX |
Weaknesses
- CWE-284 Improper Access Control
Affected Products
| Product | Versions |
|---|---|
OX Dovecot ProOpen-Xchange GmbH |
|
References
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