vulnerability
Ubuntu: (CVE-2025-30189): dovecot vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:N) | Oct 7, 2025 | Oct 30, 2025 | Nov 6, 2025 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:N)
Published
Oct 7, 2025
Added
Oct 30, 2025
Modified
Nov 6, 2025
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.
Solution
ubuntu-upgrade-dovecot
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