{"id":"UBUNTU-CVE-2025-43919","details":"GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to read arbitrary files via ../ directory traversal at /mailman/private/mailman (aka the private archive authentication endpoint) via the username parameter. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.","modified":"2026-03-03T06:08:54.785007Z","published":"2025-04-20T01:15:00Z","withdrawn":"2026-03-03T05:33:15Z","upstream":["CVE-2025-43919"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-43919"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-43919"},{"type":"REPORT","url":"https://github.com/0NYX-MY7H/CVE-2025-43919"},{"type":"REPORT","url":"https://code.launchpad.net/~mailman-coders/mailman/2.1"}],"affected":[{"package":{"name":"mailman","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/mailman@1:2.1.20-1ubuntu0.6+esm2?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:2.1.20-1","1:2.1.20-1ubuntu0.1","1:2.1.20-1ubuntu0.3","1:2.1.20-1ubuntu0.4","1:2.1.20-1ubuntu0.5","1:2.1.20-1ubuntu0.6","1:2.1.20-1ubuntu0.6+esm1","1:2.1.20-1ubuntu0.6+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"mailman","binary_version":"1:2.1.20-1ubuntu0.6+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43919.json"}},{"package":{"name":"mailman","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mailman@1:2.1.26-1ubuntu0.6?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:2.1.23-1","1:2.1.24-1","1:2.1.25-1","1:2.1.26-1","1:2.1.26-1ubuntu0.1","1:2.1.26-1ubuntu0.2","1:2.1.26-1ubuntu0.3","1:2.1.26-1ubuntu0.4","1:2.1.26-1ubuntu0.5","1:2.1.26-1ubuntu0.6"],"ecosystem_specific":{"binaries":[{"binary_name":"mailman","binary_version":"1:2.1.26-1ubuntu0.6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43919.json"}},{"package":{"name":"mailman","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/mailman@1:2.1.29-1ubuntu3.1+esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:2.1.29-1","1:2.1.29-1build1","1:2.1.29-1ubuntu3","1:2.1.29-1ubuntu3.1","1:2.1.29-1ubuntu3.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"mailman","binary_version":"1:2.1.29-1ubuntu3.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43919.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}