{"id":"UBUNTU-CVE-2026-19624","details":"A flaw was found in NetworkManager-l2tp. The plugin writes attacker-controlled VPN connection properties (vpn.data and vpn.secrets values) unescaped into a generated ipsec.conf file that pluto loads as root. A local unprivileged user can create and activate their own L2TP VPN profile containing a newline-injected leftupdown directive; pluto executes that command as root when the IKE security association is established, resulting in local privilege escalation. This is the same bug class as CVE-2018-10900 (NetworkManager-vpnc).","modified":"2026-09-16T14:01:42.250463986Z","published":"2026-09-14T20:16:00Z","upstream":["CVE-2026-19624"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-19624"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-19624"}],"affected":[{"package":{"name":"network-manager-l2tp","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.8-1","1.2.8-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"network-manager-l2tp","binary_version":"1.2.8-2build1"},{"binary_name":"network-manager-l2tp-gnome","binary_version":"1.2.8-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"}},{"package":{"name":"network-manager-l2tp","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.10-1","1.2.14-1","1.2.16-1"],"ecosystem_specific":{"binaries":[{"binary_name":"network-manager-l2tp","binary_version":"1.2.16-1"},{"binary_name":"network-manager-l2tp-gnome","binary_version":"1.2.16-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"}},{"package":{"name":"network-manager-l2tp","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.18-1build1","1.20.0-1","1.20.0-1build1","1.20.0-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"network-manager-l2tp","binary_version":"1.20.0-1build2"},{"binary_version":"1.20.0-1build2","binary_name":"network-manager-l2tp-gnome"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"}},{"package":{"name":"network-manager-l2tp","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20.8-1","1.20.10-1","1.20.12-1","1.20.12-1build1","1.20.12-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.20.12-1build2","binary_name":"network-manager-l2tp"},{"binary_name":"network-manager-l2tp-gnome","binary_version":"1.20.12-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"}},{"package":{"name":"network-manager-l2tp","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/network-manager-l2tp?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20.20-2","1.52.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"network-manager-l2tp","binary_version":"1.52.0-2"},{"binary_version":"1.52.0-2","binary_name":"network-manager-l2tp-gnome"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19624.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}