High severity · published Sep 25, 2026
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
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
NetworkManager-vpnc · GNOME
0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-91841
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-91841
vdb-entry
https://access.redhat.com/security/cve/CVE-2026-91841
issue-tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2533651
gitlab.gnome.org
https://gitlab.gnome.org/Archive/NetworkManager-vpnc/-/work_items/20
More from NetworkManager-vpnc
7.8
CVE-2026-91840
Networkmanager-vpnc: networkmanager-vpnc: local privilege escalation to root via newline injection in vpn username