CVE-2025-30189 — Open-Xchange GmbH / OX Dovecot Pro

Description (CNA)

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 (CNA)

Vendor / product	Versions
Open-Xchange GmbH / OX Dovecot Pro	affected 0 through 3.1.0; affected 0 through 2.4.0

CWE

CWE-1250

References

https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json

ADP enrichment

CVE

No English description supplied.

http://seclists.org/fulldisclosure/2025/Oct/29
http://www.openwall.com/lists/oss-security/2025/10/29/4

CISA-ADP

No English description supplied.

No references supplied.