{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19624","assignerOrgId":"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5","state":"PUBLISHED","assignerShortName":"fedora","dateReserved":"2026-08-12T14:50:47.790Z","datePublished":"2026-09-14T19:19:43.736Z","dateUpdated":"2026-09-14T19:43:32.531Z"},"containers":{"cna":{"title":"NetworkManager-l2tp: local privilege escalation via ipsec.conf injection","descriptions":[{"lang":"en","value":"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)."}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-88","description":"Improper Control of an Argument of a Program Call ('Argument Injection')"}]}],"metrics":[{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}}],"affected":[{"packageName":"NetworkManager-l2tp","collectionURL":"https://github.com/nm-l2tp/NetworkManager-l2tp","defaultStatus":"unaffected","versions":[{"version":"1.0.0","lessThan":"1.0.16","versionType":"semver","status":"affected"},{"version":"1.2.0","lessThan":"1.2.22","versionType":"semver","status":"affected"},{"version":"1.8.0","lessThan":"1.8.10","versionType":"semver","status":"affected"},{"version":"1.20.0","lessThan":"1.20.24","versionType":"semver","status":"affected"},{"version":"1.52.0","lessThan":"1.52.4","versionType":"semver","status":"affected"}]},{"vendor":"Fedora","product":"Fedora","packageName":"NetworkManager-l2tp","collectionURL":"https://bodhi.fedoraproject.org/updates/?packages=NetworkManager-l2tp","defaultStatus":"unaffected","versions":[{"version":"1.52.0","lessThan":"1.52.4","versionType":"semver","status":"affected"}]},{"vendor":"Fedora","product":"Extra Packages for Enterprise Linux (EPEL)","packageName":"NetworkManager-l2tp","collectionURL":"https://bodhi.fedoraproject.org/updates/?packages=NetworkManager-l2tp","defaultStatus":"unaffected","versions":[{"version":"1.20.0","lessThan":"1.20.24","versionType":"semver","status":"affected"}]}],"references":[{"url":"https://github.com/nm-l2tp/NetworkManager-l2tp/commit/95b6b46f48a0c9eabc79272cd313f219110ef91c","tags":["patch"]},{"url":"https://github.com/nm-l2tp/NetworkManager-l2tp/commit/3704d8c9d5e5f9ed1626a8ce7627a04247cea673","tags":["patch"]},{"url":"https://github.com/nm-l2tp/NetworkManager-l2tp/releases","tags":["release-notes"]},{"url":"https://bodhi.fedoraproject.org/updates/?packages=NetworkManager-l2tp","tags":["vendor-advisory"]},{"url":"https://linnemanlabs.com/posts/nm-l2tp-newline-to-root/","tags":["third-party-advisory"]}],"credits":[{"lang":"en","value":"Keith Linneman (Linneman Labs)"}],"datePublic":"2026-09-03T00:00:00.000Z","providerMetadata":{"orgId":"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5","shortName":"fedora","dateUpdated":"2026-09-14T19:19:43.736Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-14T19:43:22.928124Z","id":"CVE-2026-19624","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-14T19:43:32.531Z"}}]}}