Quick answers
- Is CVE-2026-91841 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91841 being exploited in the wild.
- How severe is CVE-2026-91841?
- High severity, with a CVSS score of 7.8, published 25 September 2026.
- Which products and versions are affected?
- GNOME NetworkManager-vpnc.
- Is there a fix for CVE-2026-91841?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-91841 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-91841?
- Check whether you run Gnome NetworkManager-vpnc. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a CRLF injection flaw (CWE-93) in how NetworkManager-vpnc processes the CA-File path parameter. A local unprivileged attacker can exploit this by crafting a malicious CA-File path containing a newline character, which causes the plugin to execute arbitrary commands as root. The attack requires local access to the system and the NetworkManager-vpnc package to be installed.
Affected products
- GNOME NetworkManager-vpnc
Timeline
- 2026-09-25: disclosed