DEBIAN-CVE-2026-19624

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Source
https://security-tracker.debian.org/tracker/CVE-2026-19624
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19624.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-19624
Upstream
Published
2026-09-14T20:16:43Z
Modified
2026-09-15T05:00:08Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
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).

References

Affected packages

Debian:12 / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/debian/network-manager-l2tp?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.20.8-1
1.20.10-1
1.20.12-1
1.20.16-1
1.20.20-1
1.20.20-2
1.52.0-1
1.52.0-2
1.52.2-1
1.52.4-1
1.52.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19624.json"

Debian:13 / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/debian/network-manager-l2tp?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.20.20-2+deb13u1

Affected versions

1.*
1.20.20-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19624.json"

Debian:14 / network-manager-l2tp

Package

Name
network-manager-l2tp
Purl
pkg:deb/debian/network-manager-l2tp?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.20.20-2
1.52.0-1
1.52.0-2
1.52.2-1
1.52.4-1
1.52.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19624.json"