CVE-2025-30189

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.4 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
OXCNA
7.4 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVEADP
---
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
dovecot
bullseye
1:2.3.13+dfsg1-2+deb11u1
not-affected
bookworm
1:2.3.19.1+dfsg1-2.1+deb12u1
not-affected
bullseye (security)
1:2.3.13+dfsg1-2+deb11u2
fixed
bookworm (security)
1:2.3.19.1+dfsg1-2.1+deb12u1
fixed
trixie
vulnerable
trixie (security)
1:2.4.1+dfsg1-6+deb13u1
fixed
forky
1:2.4.1+dfsg1-9
fixed
sid
1:2.4.1+dfsg1-9
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2025/oxdc-adv-2025-0001.json
http://seclists.org/fulldisclosure/2025/Oct/29