CVE-2026-47083
published 2026-07-16CVE-2026-47083: 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…
PriorityP426medium4.3CVSS 3.1
AVNACLPRLUINSUCLINAN
EPSS
0.31%
23.2th percentile
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).
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cyrusimap | cyrus_imap | < 3.12.3 | 3.12.3 |
| debian | cyrus-imapd | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
vendor_redhat4.3MEDIUM
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Red Hat
cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command
vendor_redhat·2026-07-16·CVSS 4.3
CVE-2026-47083 [MEDIUM] CWE-201 cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command
cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command
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).
A flaw was found in Cyrus IMAP. An authenticated user can exploit the ESEARCH command to discover the existence of folder names belonging to other user accounts. This vulnerability leads to information disclosure, allowing an attacker to gain unauthorized knowledge about the structure of other users' mailboxes.
Statement: This Moderate impact inf
GHSA
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2.
ghsa_unreviewed·2026-07-16
CVE-2026-47083 [MEDIUM] CWE-204 An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2.
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).
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-47083 cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command [fedora-all]
bugzilla·2026-07-17·CVSS 4.3
CVE-2026-47083 [MEDIUM] CVE-2026-47083 cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command [fedora-all]
CVE-2026-47083 cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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).
Bugzilla
CVE-2026-47083 cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command
bugzilla·2026-07-16·CVSS 4.3
CVE-2026-47083 [MEDIUM] CVE-2026-47083 cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command
CVE-2026-47083 cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command
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).
2026-07-16
Published