{"id":"CVE-2026-91839","title":"A flaw was found in NetworkManager-fortisslvpn, the FortiSSLVPN plugin for NetworkManager","summary":"A flaw was found in NetworkManager-fortisslvpn, the FortiSSLVPN plugin for NetworkManager. The nm-fortisslvpn-service improperly handles carriage-return/line-feed (CR/LF) characters in VPN connection profile credentials. A local unprivil…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-93"],"vendor":"GNOME","product":"network-manager-fortisslvpn","affected":["network-manager-fortisslvpn < *"],"published":"2026-09-25","updated":"2026-09-30","sourceUpdated":"2026-09-30T19:57:08.043","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91839","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-91839","label":"patrick@puiterwijk.org"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2533640","label":"patrick@puiterwijk.org"},{"url":"https://gitlab.gnome.org/Archive/NetworkManager-fortisslvpn/-/work_items/80","label":"patrick@puiterwijk.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91839.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-91839"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"epss":0.00204,"epssPercentile":0.10327,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-25T18:15:37.073355Z"},"ingestedAt":"2026-09-25T18:14:20.402Z","slug":"CVE-2026-91839","body":"## Overview\n\nA flaw was found in NetworkManager-fortisslvpn, the FortiSSLVPN plugin for NetworkManager. The nm-fortisslvpn-service improperly handles carriage-return/line-feed (CR/LF) characters in VPN connection profile credentials. A local unprivileged user can exploit this by crafting a malicious VPN profile to inject additional configuration directives. This can lead to arbitrary code execution with root privileges when the crafted VPN connection is activated.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91839.json)","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":211143,"id":"CVE-2026-91839","ts":1790363783384,"field":"exploit_available","old":"false","new":"true"}]}