CVE-2026-61907

Published: Sep 9, 2026Updated: Sep 14, 2026 Sources: CVE List NVDCWE-863

4.3MEDIUM

NVD MITRE

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-863

Affected Products

cyrusimap

oss-project·USaka cyrus imap, cyrus sasl, cyrus-sasl

Cyrus IMAPOn-prem

Communications / email-server-client

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://cyrusimap.org

cyrusimap.org

https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html

cyrusimap.org

https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html

cyrusimap.org

and 1 more references View all →

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