CVE-2026-47083
MEDIUM
NVD
CVSS Score
4.3
Severity
MEDIUM
Published
Jul 16, 2026
Vendor
unknown
Description
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an ESEARCH cross-user content oracle. By using the ESEARCH command, an authenticated IMAP user could enumerate folder names under any account they could name. Search would return UIDs of messages matching the search, creating a content oracle (without allowing arbitrary reads of the target's content).