{"id":"CVE-2026-91840","published":"2026-09-25T18:17:32.793","lastModified":"2026-09-28T13:17:25.337","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.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-93"],"vendors":[],"products":[],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-91840","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2533642","tags":[]},{"url":"https://gitlab.gnome.org/Archive/NetworkManager-vpnc/-/work_items/19","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}