CVE-2026-91841

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

State: Published
Severity: 7.8 High
Published: Sep 25, 2026
Updated: Sep 28, 2026
Reserved: Sep 15, 2026

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Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	fedora

Weaknesses

CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')

Affected Products

Product	Versions
NetworkManager-vpncGNOME	all versionsAffected

References

https://access.redhat.com/security/cve/CVE-2026-91841vdb-entry
RHBZ#2533651issue-tracking
https://gitlab.gnome.org/Archive/NetworkManager-vpnc/-/work_items/20

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