4.3
Medium
CVE-2026-33607 An attacker that has valid credentials can use IMAP LIST command to consume CPU
Description
An attacker that has valid credentials can use IMAP LIST command to consume CPU. This can cause degradation or denial of service for IMAP. Monitor system for abnormal CPU usage and kill the offending process and lock account. Alternatively install fixed version. No publicly available exploits are known.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| OX Dovecot Pro 3.1 | 3.1.0 → < 3.1.6 | 3.1.6 |
| OX Dovecot Pro 2.3 | 2.3.0 → < 3.0.7 | 3.0.7 |
| OX Dovecot CE 2.3 | 2.3.0 → < 2.4.5 | 2.4.5 |
References
- documentation.open-xchange.com documentation.open-xchange.com
Timeline
- Published
- Last modified
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