CVE-2026-91841

Networkmanager-vpnc: networkmanager-vpnc: incomplete fix for cve-2018-10900 allows root privilege escalation via ca-file path newline injection

7.8 High

A flaw was found in NetworkManager-vpnc, a VPN plugin for NetworkManager. A local unprivileged user can exploit this vulnerability by injecting a newline character into the CA-File path. This manipulation allows the user to execute arbitrary commands as the root user, leading to local privilege escalation.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.19%Unchanged since Sep 26, 2026

What each source reports

CVE List Score used 7.8

Networkmanager-vpnc: networkmanager-vpnc: incomplete fix for cve-2018-10900 allows root privilege escalation via ca-file path newline injection

Record: CVE-2026-91841
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-93
Updated: 2026-11-02

EUVDEUVD-2026-87251 7.8

Record: EUVD-2026-87251
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-w3p6-vc7r-vcv4 7.8

A flaw was found in NetworkManager-vpnc, a VPN plugin for NetworkManager. A local unprivileged...

Record: GHSA-w3p6-vc7r-vcv4
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-93
Updated: 2026-11-02

NVD 7.8

Record: CVE-2026-91841
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-93
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-91841 7.8

Record: DEBIAN-CVE-2026-91841
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-91841 7.8

Record: UBUNTU-CVE-2026-91841
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`network-manager-vpnc` Debian:12	All versions, plus listed versions 1.2.8-41.2.8-51.2.8-61.2.8-71.2.8-8 Show 4 moreShow less 1.4.0-11.4.0-21.4.0-31.4.0-4	None known
`network-manager-vpnc` Debian:13	All versions, plus listed versions 1.4.0-21.4.0-31.4.0-4	None known
`network-manager-vpnc` Ubuntu:16.04:LTS	All versions, plus listed versions 0.9.10.0-1ubuntu11.0.8-1ubuntu11.1.93-11.1.93-1ubuntu0.1	None known
`network-manager-vpnc` Ubuntu:18.04:LTS	All versions, plus listed versions 1.2.4-41.2.4-61.2.4-6ubuntu0.1	None known
`network-manager-vpnc` Ubuntu:20.04:LTS	All versions, plus listed versions 1.2.6-2	None known
`network-manager-vpnc` Ubuntu:22.04:LTS	All versions, plus listed versions 1.2.6-31.2.6-41.2.8-2	None known
`network-manager-vpnc` Ubuntu:24.04:LTS	All versions, plus listed versions 1.2.8-51.2.8-71.2.8-7build11.2.8-7build2	None known
`network-manager-vpnc` Ubuntu:26.10	All versions, plus listed versions 1.4.0-3build11.4.0-4	None known
`network-manager-vpnc` Ubuntu:26.04:LTS	All versions, plus listed versions 1.4.0-31.4.0-3build1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-91841 is a high vulnerability (CVSS 7.8) in [unknown] Networkmanager-vpnc, published September 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 9th percentile. No source names a fixed version.