CVE-2025-30189

HIGH7.4

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

Published Oct 31, 2025

Modified 3 months ago

Details

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.

References

WEB

http://seclists.org/fulldisclosure/2025/Oct/29

WEB

http://www.openwall.com/lists/oss-security/2025/10/29/4

ADVISORY

https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2025/oxdc-adv-2025-0001.json

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2025-30189

CVSS Analysis

CVSS v3.1

7.4