CVE-2026-78043 Path traversal in OpenVPN
Local authenticated users can bypass configuration constraints to load arbitrary files, potentially leading to privilege escalation or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-78043?
CVE-2026-78043 is a medium-severity path traversal vulnerability in OpenVPN, published on 7 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via specially crafted paths
Weakness: CWE-22
Which versions are affected by CVE-2026-78043?
How do I fix CVE-2026-78043?
No fix has been published for CVE-2026-78043 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-78043 being exploited?
There is no known exploitation of CVE-2026-78043 in the wild and no public exploit code.
Sources
Also known as GHSA-2xjv-5x6f-xgmp.