Bug 2501667

Summary:	CVE-2026-47083 cyrus-imapd: Cyrus IMAP: Information disclosure via ESEARCH command [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Ganesh <gnaik>
Component:	cyrus-imapd	Assignee:	Martin Osvald 🛹 <mosvald>
Status:	ON_QA ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	45	CC:	fhrdina, jorton, j, mosvald, pavel, zdohnal
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["08d0a4a8-ff5f-4d62-827c-cac569282d6b"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2501451

Description Ganesh 2026-07-17 03:55:58 UTC

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).

Comment 1 Aoife Moloney 2026-08-17 15:22:11 UTC

This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 2 Fedora Update System 2026-09-14 07:16:22 UTC

FEDORA-2026-3bf3e31ef4 (cyrus-imapd-3.12.4-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3bf3e31ef4

Comment 3 Fedora Update System 2026-09-14 07:17:50 UTC

FEDORA-2026-740bc1c6fa (cyrus-imapd-3.12.4-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-740bc1c6fa

Comment 4 Fedora Update System 2026-09-14 07:19:17 UTC

FEDORA-2026-97a7ec5786 (cyrus-imapd-3.10.4-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-97a7ec5786

Comment 5 Fedora Update System 2026-09-15 01:26:06 UTC

FEDORA-2026-3bf3e31ef4 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-3bf3e31ef4`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3bf3e31ef4

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-09-15 01:41:41 UTC

FEDORA-2026-740bc1c6fa has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-740bc1c6fa`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-740bc1c6fa

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2026-09-15 02:03:50 UTC

FEDORA-2026-97a7ec5786 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-97a7ec5786`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-97a7ec5786

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.