Local Privilege Escalation in NetworkManager-vpnc VPN Plugin
CVE-2026-91841

7.8HIGH

Key Information:

Vendor

Gnome
Status
Networkmanager-vpnc
Vendor
CVE Published:
25 September 2026

What is CVE-2026-91841?

A vulnerability exists in NetworkManager-vpnc, the VPN plugin for NetworkManager, which allows a local unprivileged user to exploit the system by injecting a newline character into the CA-File path. This manipulation can enable the execution of arbitrary commands with root privileges, posing a significant security risk by facilitating local privilege escalation.

Affected Version(s)

NetworkManager-vpnc 0

References

https://access.redhat.com/security/cve/CVE-2026-91841
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2533651
issue-trackingx_refsource_REDHAT
https://gitlab.gnome.org/Archive/NetworkManager-vpnc/-/wo...

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Andreas Gabriel Berbescu for reporting this issue.
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