{"id":"UBUNTU-CVE-2026-107570","details":"heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write when email is used as a template.","modified":"2026-10-13T15:17:02.828398796Z","published":"2026-10-12T00:00:00Z","upstream":["CVE-2026-107570"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-107570"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-107570"},{"type":"REPORT","url":"gitlab.com/muttmua/mutt"},{"type":"REPORT","url":"github.com/cveproject/cvelistv5/tree/main/cves/2026/107xxx/cve-2026-107570.json"},{"type":"REPORT","url":"gitlab.com/muttmua/mutt/-/work_items/533"},{"type":"REPORT","url":"nvd.nist.gov/vuln/detail/cve-2026-107570"},{"type":"REPORT","url":"gitlab.com/muttmua/mutt/-/commit/7752d93f26f8f1384905fad874afff5abb0f3e54"},{"type":"REPORT","url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1150407"},{"type":"REPORT","url":"security-tracker.debian.org/tracker/cve-2026-107570"},{"type":"REPORT","url":"www.openwall.com/lists/oss-security/2026/10/09/21"}],"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_version":"1.5.24-1ubuntu0.6+esm3","binary_name":"mutt"},{"binary_version":"1.5.24-1ubuntu0.6+esm3","binary_name":"mutt-patched"}],"priority_reason":"Heap out-of-bounds write in mutt requires a user to use a crafted email as a template, so exploitation needs local interaction and is not remotely reachable by default in Ubuntu deployments."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107570.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":{"priority_reason":"Heap out-of-bounds write in mutt requires a user to use a crafted email as a template, so exploitation needs local interaction and is not remotely reachable by default in Ubuntu deployments.","binaries":[{"binary_name":"mutt","binary_version":"1.9.4-3ubuntu0.6+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107570.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":{"priority_reason":"Heap out-of-bounds write in mutt requires a user to use a crafted email as a template, so exploitation needs local interaction and is not remotely reachable by default in Ubuntu 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deployments.","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-2026-107570.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"}],"priority_reason":"Heap out-of-bounds write in mutt requires a user to use a crafted email as a template, so exploitation needs local interaction and is not remotely reachable by default in Ubuntu deployments."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107570.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":{"priority_reason":"Heap out-of-bounds write in mutt requires a user to use a crafted email as a template, so exploitation needs local interaction and is not remotely reachable by default in Ubuntu 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