Skip to content
CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-19624

NetworkManager-l2tp: local privilege escalation via ipsec.conf injection

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
fedora

Description

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).

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

NetworkManager-l2tp

Default version status: unaffected

  • 1.0.0 to < 1.0.16affected
  • 1.2.0 to < 1.2.22affected
  • 1.8.0 to < 1.8.10affected
  • 1.20.0 to < 1.20.24affected
  • 1.52.0 to < 1.52.4affected

Fedora Fedora

Default version status: unaffected

  • 1.52.0 to < 1.52.4affected

Fedora Extra Packages for Enterprise Linux (EPEL)

Default version status: unaffected

  • 1.20.0 to < 1.20.24affected

References