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.
Metrics
Affected Vendors & Products
References
History
Tue, 12 May 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Open-xchange
Open-xchange ox Dovecot Pro |
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| Vendors & Products |
Open-xchange
Open-xchange ox Dovecot Pro |
Tue, 12 May 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Tue, 12 May 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | IMAP SETACL Allows Injection of Anyone Permission in Dovecot ACL File |
Tue, 12 May 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Weaknesses | CWE-284 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: OX
Published:
Updated: 2026-05-12T15:40:12.510Z
Reserved: 2026-04-08T09:59:59.342Z
Link: CVE-2026-40020
Updated: 2026-05-12T15:40:08.183Z
Status : Awaiting Analysis
Published: 2026-05-12T14:17:03.687
Modified: 2026-05-12T15:08:22.857
Link: CVE-2026-40020
No data.
OpenCVE Enrichment
Updated: 2026-05-12T16:30:19Z