Description
An issue was discovered in Cyrus IMAP before 3.12.4. JMAP snooze bypasses the destination-mailbox ACL. An authenticated user with insert permissions on another user's snoozed mailbox could cause insertion of mail to that user's inbox, or any other of their mailboxes whose id was known to the user, despite having no insert permissions to the target mailbox.
Published: 2026-09-09
Score: 4.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 09 Sep 2026 21:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Wed, 09 Sep 2026 19:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE. An issue was discovered in Cyrus IMAP before 3.12.4. JMAP snooze bypasses the destination-mailbox ACL. An authenticated user with insert permissions on another user's snoozed mailbox could cause insertion of mail to that user's inbox, or any other of their mailboxes whose id was known to the user, despite having no insert permissions to the target mailbox.
First Time appeared Cyrusimap
Cyrusimap cyrus Imap
Weaknesses CWE-863
CPEs cpe:2.3:a:cyrusimap:cyrus_imap:*:*:*:*:*:*:*:*
Vendors & Products Cyrusimap
Cyrusimap cyrus Imap
References

Wed, 09 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Wed, 09 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE.
Title cyrus-imapd: cyrus-imapd: JMAP snooze bypasses destination-mailbox ACL
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

threat_severity

Moderate


Subscriptions

Cyrusimap Cyrus Imap
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-09T19:02:00.754Z

Reserved: 2026-07-13T00:00:00.000Z

Link: CVE-2026-61907

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-09-09T19:17:28.927

Modified: 2026-09-09T20:11:44.187

Link: CVE-2026-61907

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-09T08:02:56Z

Links: CVE-2026-61907 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-09T21:30:15Z

Weaknesses