DEBIAN-CVE-2026-91838

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Source

https://security-tracker.debian.org/tracker/CVE-2026-91838

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-91838.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-91838

Upstream

CVE-2026-91838

Published

2026-09-25T18:17:32Z

Modified

2026-10-02T16:00:08Z

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-sstp, the SSTP VPN plugin for NetworkManager. A local unprivileged user can exploit this vulnerability by embedding special characters, known as shell metacharacters, into VPN connection profile fields such as CA certificate or proxy settings. These unescaped characters are then processed by the pppd daemon, which runs with root privileges, allowing the attacker to execute arbitrary commands with elevated permissions when a malicious VPN connection is activated.

References

https://security-tracker.debian.org/tracker/CVE-2026-91838

Affected packages

Debian:12 / network-manager-sstp

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.0-2

1.3.1-1

1.3.1-2

1.3.2-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-91838.json"

Debian:13 / network-manager-sstp