{"id":"UBUNTU-CVE-2026-43862","details":"In mutt before 2.3.2, the imap_auth_gss security level is mishandled.","modified":"2026-05-20T16:26:03.588042281Z","published":"2026-05-04T07:16:00Z","upstream":["CVE-2026-43862"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-43862"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-43862"}],"affected":[{"package":{"name":"mutt","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/mutt?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.23-3.1ubuntu1","1.5.23-3.1ubuntu2","1.5.24-1","1.5.24-1build1","1.5.24-1ubuntu0.1","1.5.24-1ubuntu0.2","1.5.24-1ubuntu0.3","1.5.24-1ubuntu0.4","1.5.24-1ubuntu0.5","1.5.24-1ubuntu0.6","1.5.24-1ubuntu0.6+esm2","1.5.24-1ubuntu0.6+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"mutt","binary_version":"1.5.24-1ubuntu0.6+esm3"},{"binary_name":"mutt-patched","binary_version":"1.5.24-1ubuntu0.6+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43862.json"}},{"package":{"name":"mutt","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/mutt?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.3+neomutt20170609-2build1","1.9.1-2","1.9.1-3","1.9.1-4","1.9.1-5","1.9.2-1","1.9.3-1","1.9.4-2","1.9.4-3","1.9.4-3ubuntu0.1","1.9.4-3ubuntu0.2","1.9.4-3ubuntu0.3","1.9.4-3ubuntu0.4","1.9.4-3ubuntu0.5","1.9.4-3ubuntu0.6","1.9.4-3ubuntu0.6+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.4-3ubuntu0.6+esm1","binary_name":"mutt"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43862.json"}},{"package":{"name":"mutt","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/mutt?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.10.1-2.1","1.12.2-1","1.12.2-2","1.13.0-1","1.13.2-1","1.13.2-1ubuntu0.1","1.13.2-1ubuntu0.2","1.13.2-1ubuntu0.3","1.13.2-1ubuntu0.4","1.13.2-1ubuntu0.5","1.13.2-1ubuntu0.6"],"ecosystem_specific":{"binaries":[{"binary_name":"mutt","binary_version":"1.13.2-1ubuntu0.6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43862.json"}},{"package":{"name":"mutt","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mutt?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.5-4.1build1","2.1.3-1","2.1.4-1","2.1.4-1build1","2.1.4-1ubuntu1.1","2.1.4-1ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_name":"mutt","binary_version":"2.1.4-1ubuntu1.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43862.json"}},{"package":{"name":"mutt","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/mutt?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.9-1","2.2.9-1ubuntu0.23.10.1","2.2.12-0.1","2.2.12-0.1build2","2.2.12-0.1build3","2.2.12-0.1build4"],"ecosystem_specific":{"binaries":[{"binary_name":"mutt","binary_version":"2.2.12-0.1build4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43862.json"}},{"package":{"name":"mutt","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/mutt?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.13-1"],"ecosystem_specific":{"binaries":[{"binary_name":"mutt","binary_version":"2.2.13-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43862.json"}},{"package":{"name":"mutt","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/mutt?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.13-1","2.2.13-1build1","2.2.13-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.2.13-1build2","binary_name":"mutt"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43862.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}