CVE-2026-91839

Networkmanager-fortisslvpn: networkmanager-fortisslvpn: local privilege escalation to root via crlf injection in vpn profile credentials

Published: Sep 25, 2026Updated: Sep 26, 2026 Sources: CVE List NVDCWE-93

7.8HIGH

Description

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 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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:LAttack Vector

Local

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-93

Affected Products

GNOME

oss-project·USaka gnome project, glib

NetworkManager-fortisslvpnOn-prem

Consumer Software / productivity

Exploitability

Workaround Available

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References

https://access.redhat.com/security/cve/CVE-2026-91839

access.redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2533640

bugzilla.redhat.com

https://gitlab.gnome.org/Archive/NetworkManager-fortisslvpn/-/work_items/80

gitlab.gnome.org

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