4.3

CVE-2026-61911

An issue was discovered in Cyrus IMAP before 3.12.4. There is a Sieve mailbox existence oracle. An authenticated user could install a Sieve script that probed whether another user's private mailbox existed, or read the value of shared mailbox annotations, by observing which fileinto branch fired during LMTP delivery.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cyrus ≫ Imap Version < 3.8.8
Cyrus ≫ Imap Version >= 3.9.0 < 3.10.4
Cyrus ≫ Imap Version >= 3.11.0 < 3.12.4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.121
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
MITRE 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

The product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does.

https://cyrusimap.org
Product
https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html
Release Notes
https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html
Release Notes
https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html
Release Notes