{"id":"CVE-2026-61907","title":"An issue was discovered in Cyrus IMAP before 3.12.4","summary":"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…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-863"],"vendor":"cyrusimap","product":"Cyrus IMAP","affected":["cyrus_imap < 3.8.8","cyrus_imap >= 3.9.0 < 3.10.4","cyrus_imap >= 3.11.0 < 3.12.4"],"published":"2026-09-09","updated":"2026-09-14","sourceUpdated":"2026-09-14T16:17:17.010","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61907","references":[{"url":"https://cyrusimap.org","label":"cve@mitre.org"},{"url":"https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html","label":"cve@mitre.org"},{"url":"https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html","label":"cve@mitre.org"},{"url":"https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html","label":"cve@mitre.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-61907.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-61907"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2526303"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-61907"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61907"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00366,"epssPercentile":0.27641,"ingestedAt":"2026-09-10T14:23:55.490Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-14T15:37:23.762533Z"},"slug":"CVE-2026-61907","body":"## Overview\n\nAn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-10 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-61907.json)","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}