{"id":"CVE-2026-61907","aliases":["DEBIAN-CVE-2026-61907","EUVD-2026-75139","GHSA-245j-3rxm-cqmg","UBUNTU-CVE-2026-61907","openSUSE-SU-2026:21929-1"],"status":"published","title":"An issue was discovered in Cyrus IMAP before 3.12.4. JMAP snooze bypasses the destination-mailbox...","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.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00213,"percentile":0.1177,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2026-09-09T00:00:00Z","modified":"2026-10-17T12:59:15Z","fixes":[{"ecosystem":"Debian:14","package":"cyrus-imapd","fixed_in":["3.12.4-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.0-1","3.10.0~beta1-1","3.10.0~beta1-2","3.10.0~beta1-3","3.10.0~beta2-1","3.10.0~rc2-1","3.10.1-1","3.10.1-2","3.10.1-3","3.10.1-3~bpo12+1","3.10.2-1","3.10.2-1~bpo12+1","3.12.0-1","3.12.0-2","3.12.1-1","3.12.1-2","3.12.1-3","3.12.2-1","3.12.3-1","3.12.3-1~bpo13+1","3.12.3-2","3.12.3-3","3.12.3-4","3.12.4-1","3.6.1-4","3.6.1-4+deb12u1","3.6.1-4+deb12u2","3.6.1-4+deb12u3","3.6.1-4+deb12u4","3.6.1-4+deb12u5","3.8.0-1","3.8.0-2","3.8.0-3","3.8.0-4","3.8.0-5","3.8.0~beta1-1","3.8.0~beta2-1","3.8.0~rc1-1","3.8.1-1","3.8.1-1~bpo12+1","3.8.1-2","3.8.1-3","3.8.2-1","3.8.3-1","3.8.4-1"]},{"source":"osv","ecosystem":"Debian:13","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.2-1","3.10.2-1+deb13u1","3.10.2-1+deb13u2","3.12.0-1","3.12.0-2","3.12.1-1","3.12.1-2","3.12.1-3","3.12.2-1","3.12.3-1","3.12.3-1~bpo13+1","3.12.3-2","3.12.3-3","3.12.3-4","3.12.4-1"]},{"source":"osv","ecosystem":"Debian:14","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.12.4-1"}]}],"versions":["3.10.2-1","3.12.0-1","3.12.0-2","3.12.1-1","3.12.1-2","3.12.1-3","3.12.2-1","3.12.3-1","3.12.3-1~bpo13+1","3.12.3-2","3.12.3-3","3.12.3-4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.10-3build1","2.5.10-3build2","2.5.10-3ubuntu1","2.5.10-3ubuntu1.1","2.5.10-3ubuntu1.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.11-1","3.0.11-1build1","3.0.12-1","3.0.12-2","3.0.12-2ubuntu2","3.0.12-2ubuntu3","3.0.13-2ubuntu1","3.0.13-3ubuntu1","3.0.13-4ubuntu1","3.0.13-5","3.0.13-5ubuntu0.1~esm1","3.0.13-5ubuntu0.1~esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.6-2build1","3.4.2-2","3.4.2-2build1","3.4.3-2","3.4.3-3","3.4.3-3build2","3.4.3-3ubuntu0.1","3.4.3-3ubuntu0.1+esm1","3.4.3-3ubuntu0.3","3.4.3-3ubuntu0.3+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.8.0-5","3.8.1-1","3.8.1-1build1","3.8.1-1build2","3.8.1-3","3.8.1-3build3","3.8.2-1","3.8.2-1ubuntu0.1~esm1","3.8.2-1ubuntu0.2","3.8.2-1ubuntu0.2+esm1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.12.1-3","3.12.2-1","3.12.2-1build1","3.12.3-3build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.2-1","3.12.1-2","3.12.1-2build1","3.12.1-3"]},{"source":"osv","ecosystem":"openSUSE:Leap 16.0","package":"cyrus-imapd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.8-bp160.1.1"}]}],"bundled":6}],"products":[{"vendor":"cyrusimap","product":"cyrus imap"}],"references":[{"url":"https://cyrusimap.org"},{"url":"https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html"},{"url":"https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html"},{"url":"https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61907"},{"url":"https://github.com/advisories/GHSA-245j-3rxm-cqmg"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-61907","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-61907","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-61907","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1279908","tags":["report"]},{"url":"https://bugzilla.suse.com/1279975","tags":["report"]},{"url":"https://bugzilla.suse.com/1279976","tags":["report"]},{"url":"https://bugzilla.suse.com/1279977","tags":["report"]},{"url":"https://bugzilla.suse.com/1279978","tags":["report"]},{"url":"https://bugzilla.suse.com/1279979","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-61907","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-61908","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-61909","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-61910","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-61911","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-61915","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-61907","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.","status":"published","published":"2026-09-09T00:00:00Z","modified":"2026-09-14T15:41:32.424Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:19:53.4444Z"}],"euvd":[{"id":"EUVD-2026-75139","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.","status":"published","published":"2026-09-09T00:00:00Z","modified":"2026-09-14T15:41:32Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:28:20.426868Z"}],"ghsa":[{"id":"GHSA-245j-3rxm-cqmg","title":"An issue was discovered in Cyrus IMAP before 3.12.4. JMAP snooze bypasses the destination-mailbox...","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.","status":"published","published":"2026-09-09T21:31:55Z","modified":"2026-09-09T21:31:56Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:11:40.819612Z"}],"nvd":[{"id":"CVE-2026-61907","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.","status":"published","published":"2026-09-09T19:17:28.927Z","modified":"2026-09-14T16:17:17.01Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:45.93749Z"}],"osv":[{"id":"DEBIAN-CVE-2026-61907","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.","status":"published","published":"2026-09-09T19:17:28.927Z","modified":"2026-10-01T03:03:28.800711477Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:57.932517Z"},{"id":"UBUNTU-CVE-2026-61907","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.","status":"published","published":"2026-09-09T14:00:00Z","modified":"2026-10-17T12:59:15.292978123Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:43.630667Z"},{"id":"openSUSE-SU-2026:21929-1","title":"Security update for cyrus-imapd","description":"This update for cyrus-imapd fixes the following issues:\n\nChanges in cyrus-imapd:\n\nUpdate to 3.8.8 (bugfix release):\n\n- CVE-2026-61907: JMAP snooze bypasses destination-mailbox ACL (bsc#1279908)\n- CVE-2026-61908: JMAP email-header blob ID out-of-bounds index (bsc#1279975)\n- CVE-2026-61909: CalDAV/CardDAV multiget bypasses per-href ACL (bsc#1279976)\n- CVE-2026-61910: Mailbox/set let sharee change special-use role on shared mailboxes (bsc#1279977)\n- CVE-2026-61911: Sieve mailbox existence oracle (bsc#1279978)\n- CVE-2026-61915: VPATCH BYPARAM double-free (bsc#1279979)\n","status":"published","published":"2026-09-22T15:42:33Z","modified":"2026-09-25T18:23:14.142636484Z","updated_at":"2026-11-02T16:58:42.426393Z"}]}}