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CVE-2026-19624 A flaw was found in NetworkManager-l2tp

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 and versions

Product Affected versions Fixed in
Fedora 1.52 1.52.0 → < 1.52.4 1.52.4
Extra Packages for Enterprise Linux (EPEL) 1.20 1.20.0 → < 1.20.24 1.20.24

References

Timeline

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