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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-91840

Networkmanager-vpnc: networkmanager-vpnc: local privilege escalation to root via newline injection in vpn username

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GNOME NetworkManager-vpnc

Default version status: unaffected

  • 0 to < *affected

References