CVE-2026-91837
Networkmanager-iodine: networkmanager-iodine: local privilege escalation to root via nameserver option injection
- State
- Published
- Severity
- 7.8 High
- Published
- Sep 25, 2026
- Updated
- Sep 25, 2026
- Reserved
- Sep 15, 2026
Description
A flaw was found in NetworkManager-iodine, the iodine VPN plugin for NetworkManager. A local unprivileged user can exploit a vulnerability in how the 'nameserver' setting is processed when establishing an iodine VPN connection. By embedding shell metacharacters (special characters that can execute commands) in the 'nameserver' value, an attacker can inject and execute arbitrary commands. These commands run with root privileges before the application drops its elevated permissions, leading to local privilege escalation.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | fedora |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
NetworkManager-iodineGNOME |
|
References
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