7.8
High
CVE-2026-91840 A flaw was found in NetworkManager-vpnc
Description
A flaw was found in NetworkManager-vpnc. This vulnerability allows a local unprivileged user to escalate privileges to root. By injecting a newline character into the VPN username field, an attacker can manipulate the vpnc configuration to execute an arbitrary program with root privileges when the malicious VPN connection is activated.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| NetworkManager-vpnc | Versions not published |
References
- access.redhat.com access.redhat.com
- RHBZ#2533642 bugzilla.redhat.com
- gitlab.gnome.org gitlab.gnome.org
Timeline
- Published
- Last modified