7.4
High
CVE-2025-30189 When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong…
Description
When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users. After cached login, all subsequent logins are for same user. Install fixed version or disable caching either globally or for the impacted passdb/userdb drivers. No publicly available exploits are known.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| OX Dovecot Pro 3.1 | earliest → 3.1.0 | No fix stated |
| OX Dovecot Pro 2.4 | earliest → 2.4.0 | No fix stated |
Other CVEs of OX Dovecot Pro
The 44 CVEs of OX Dovecot Pro →
CVE-2026-73209
An attacker that has valid credentials can send crafted compressed data that causes the affected process to exhaust…
6.5
Medium
CVE-2026-73208
An attacker that holds a token intended for a different purpose can authenticate, because when an OAuth2 token…
7.4
High
CVE-2026-52687
An attacker that has valid credentials can select a compression algorithm for the IMAP connection whose decompression…
6.5
Medium
CVE-2026-52681
Sieve CPU resource usage is tracked in the compiled script, so an attacker that has valid credentials can reset the…
3.1
Low