CVE-2026-61907

medium

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.

References

https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html

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

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

https://cyrusimap.org

Details

Source: Mitre, NVD

Published: 2026-09-09

Updated: 2026-09-09

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.0035