{"id":"CVE-2026-114732","aliases":["DEBIAN-CVE-2026-114732","EUVD-2026-107999","GHSA-qc6m-xxcv-cwh2","UBUNTU-CVE-2026-114732"],"status":"published","title":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication...","description":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00384,"percentile":0.32914,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-288"],"published":"2026-10-22T02:16:51Z","modified":"2026-11-04T01:41:53Z","fixes":[{"ecosystem":"Debian:13","package":"roundcube","fixed_in":["1.6.20+dfsg-0+deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"roundcube","fixed_in":["1.6.20+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.1+dfsg-1","1.6.10+dfsg-1","1.6.10+dfsg-2","1.6.11+dfsg-1","1.6.12+dfsg-1","1.6.13+dfsg-1","1.6.14+dfsg-1","1.6.15+dfsg-1","1.6.16+dfsg-1","1.6.17+dfsg-1","1.6.18+dfsg-1","1.6.19+dfsg-1","1.6.2+dfsg-1","1.6.20+dfsg-1","1.6.3+dfsg-1","1.6.3+dfsg-1~deb12u1","1.6.3+dfsg-2","1.6.4+dfsg-1","1.6.4+dfsg-1~deb12u1","1.6.5+dfsg-1","1.6.5+dfsg-1+deb12u10","1.6.5+dfsg-1+deb12u11","1.6.5+dfsg-1+deb12u12","1.6.5+dfsg-1+deb12u2","1.6.5+dfsg-1+deb12u3","1.6.5+dfsg-1+deb12u4","1.6.5+dfsg-1+deb12u5","1.6.5+dfsg-1+deb12u6","1.6.5+dfsg-1+deb12u7","1.6.5+dfsg-1+deb12u8","1.6.5+dfsg-1+deb12u9","1.6.5+dfsg-1~deb12u1","1.6.6+dfsg-1","1.6.6+dfsg-2","1.6.7+dfsg-1","1.6.8+dfsg-1","1.6.8+dfsg-2","1.6.9+dfsg-1","1.6.9+dfsg-2"]},{"source":"osv","ecosystem":"Debian:13","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.20+dfsg-0+deb13u1"}]}],"versions":["1.6.11+dfsg-1","1.6.12+dfsg-0+deb13u1","1.6.12+dfsg-1","1.6.13+dfsg-0+deb13u1","1.6.13+dfsg-1","1.6.14+dfsg-1","1.6.15+dfsg-0+deb13u1","1.6.15+dfsg-1","1.6.16+dfsg-0+deb13u1","1.6.16+dfsg-1","1.6.17+dfsg-0+deb13u1","1.6.17+dfsg-1","1.6.18+dfsg-0+deb13u1","1.6.18+dfsg-1","1.6.19+dfsg-0+deb13u1","1.6.19+dfsg-1"]},{"source":"osv","ecosystem":"Debian:14","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.20+dfsg-1"}]}],"versions":["1.6.11+dfsg-1","1.6.12+dfsg-1","1.6.13+dfsg-1","1.6.14+dfsg-1","1.6.15+dfsg-1","1.6.16+dfsg-1","1.6.17+dfsg-1","1.6.18+dfsg-1","1.6.19+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.1+dfsg.1-2","1.1.2+dfsg.1-5","1.1.3+dfsg.1-1","1.1.4+dfsg.1-1","1.2~beta+dfsg.1-0ubuntu1","1.2~beta+dfsg.1-0ubuntu1+esm1","1.2~beta+dfsg.1-0ubuntu1+esm2","1.2~beta+dfsg.1-0ubuntu1+esm3","1.2~beta+dfsg.1-0ubuntu1+esm4","1.2~beta+dfsg.1-0ubuntu1+esm5","1.2~beta+dfsg.1-0ubuntu1+esm6","1.2~beta+dfsg.1-0ubuntu1+esm7","1.2~beta+dfsg.1-0ubuntu1+esm8"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0+dfsg.1-1","1.3.1+dfsg.1-1","1.3.3+dfsg.1-1","1.3.3+dfsg.1-2","1.3.6+dfsg.1-1","1.3.6+dfsg.1-1ubuntu0.1~esm1","1.3.6+dfsg.1-1ubuntu0.1~esm2","1.3.6+dfsg.1-1ubuntu0.1~esm3","1.3.6+dfsg.1-1ubuntu0.1~esm4","1.3.6+dfsg.1-1ubuntu0.1~esm5","1.3.6+dfsg.1-1ubuntu0.1~esm6","1.3.6+dfsg.1-1ubuntu0.1~esm7","1.3.6+dfsg.1-1ubuntu0.1~esm8"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.8+dfsg.1-2","1.3.10+dfsg.1-1","1.4.1+dfsg.1-2","1.4.2+dfsg.1-1","1.4.2+dfsg.1-2","1.4.3+dfsg.1-1","1.4.3+dfsg.1-1ubuntu0.1~esm1","1.4.3+dfsg.1-1ubuntu0.1~esm2","1.4.3+dfsg.1-1ubuntu0.1~esm3","1.4.3+dfsg.1-1ubuntu0.1~esm4","1.4.3+dfsg.1-1ubuntu0.1~esm5","1.4.3+dfsg.1-1ubuntu0.1~esm6","1.4.3+dfsg.1-1ubuntu0.1~esm7","1.4.3+dfsg.1-1ubuntu0.1~esm8"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11+dfsg.1-4","1.5.0+dfsg.1-2","1.5.0+dfsg.1-2ubuntu0.1~esm1","1.5.0+dfsg.1-2ubuntu0.1~esm2","1.5.0+dfsg.1-2ubuntu0.1~esm3","1.5.0+dfsg.1-2ubuntu0.1~esm4","1.5.0+dfsg.1-2ubuntu0.1~esm5","1.5.0+dfsg.1-2ubuntu0.1~esm6"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.2+dfsg-1","1.6.4+dfsg-1","1.6.5+dfsg-1","1.6.6+dfsg-1","1.6.6+dfsg-2","1.6.6+dfsg-2ubuntu0.1","1.6.6+dfsg-2ubuntu0.1+esm1","1.6.6+dfsg-2ubuntu0.1+esm2","1.6.6+dfsg-2ubuntu0.1+esm3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.11+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:26.04:LTS","package":"roundcube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.11+dfsg-1","1.6.11+dfsg-1ubuntu0.26.04.1~esm1"]}],"products":[{"vendor":"bulwarkmail","product":"webmail"},{"vendor":"roundcube","product":"webmail"}],"references":[{"url":"https://bugs.debian.org/1151279","tags":["issue-tracking","third-party-advisory","Third Party Advisory","Mailing List","report"]},{"url":"https://github.com/roundcube/roundcubemail/commit/453c413d6851cf603bebdb15e58381f5ef9b8094","tags":["patch","Patch","fix"]},{"url":"https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5","tags":["vendor-advisory","release-notes","Release Notes","advisory","report"]},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.7.5","tags":["release-notes","patch","Release Notes","fix"]},{"url":"https://github.com/roundcube/roundcubemail/releases/tag/1.6.20","tags":["release-notes","patch","Release Notes","fix"]},{"url":"https://github.com/roundcube/roundcubemail/commit/cb235cbfef88cbf78236dc67d3b667bf3dc61ddd","tags":["patch","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114732","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-qc6m-xxcv-cwh2"},{"url":"https://github.com/roundcube/roundcubemail/","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114732.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-114732","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-114732","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-114732","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-114732","description":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.","status":"published","published":"2026-10-22T02:16:51.833Z","modified":"2026-10-29T10:57:39.353Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T13:40:01.309549Z"}],"euvd":[{"id":"EUVD-2026-107999","description":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.","status":"published","published":"2026-10-22T02:16:51Z","modified":"2026-10-29T10:57:39Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T16:59:17.279653Z"}],"ghsa":[{"id":"GHSA-qc6m-xxcv-cwh2","title":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication...","description":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.","status":"published","published":"2026-10-22T03:33:50Z","modified":"2026-10-22T03:33:57Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T15:14:14.973906Z"}],"nvd":[{"id":"CVE-2026-114732","description":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.","status":"published","published":"2026-10-22T03:16:38.51Z","modified":"2026-11-04T01:41:53.537Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-288"],"updated_at":"2026-11-04T06:53:29.248676Z"}],"osv":[{"id":"CVE-2026-114732","description":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.","status":"published","published":"2026-10-22T02:16:51.833Z","modified":"2026-11-05T03:29:48.620810505Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-288"],"updated_at":"2026-11-05T07:12:46.161235Z"},{"id":"DEBIAN-CVE-2026-114732","description":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.","status":"published","published":"2026-10-22T03:16:38.51Z","modified":"2026-11-04T10:00:37.402750271Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-04T10:05:32.187009Z"},{"id":"UBUNTU-CVE-2026-114732","description":"Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by an improper authentication vulnerability in multi-host installations. When a user logs in with an alias address, rcube_user::query() matched the address against identity records without qualifying the lookup by IMAP host, so a login could be resolved to a user account belonging to a different IMAP host. Upstream fixed this in the commit “Fix bug where an alias login wasn’t qualified by IMAP host”.","status":"published","published":"2026-10-22T03:16:00Z","modified":"2026-11-05T11:45:48.837758583Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-05T13:30:15.321876Z"}]}}