CVE-2026-39814 Path traversal in FortiWeb
Attackers can execute unauthorized code or commands via relative path traversal in Fortinet FortiWeb devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-39814?
CVE-2026-39814 is a medium-severity path traversal vulnerability in Fortinet Fortiweb, published on 14 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Multiple Relative Path Traversal vulnerabilities [CWE-23] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.1 through 7.4.13, FortiWeb 7.2.7 through 7.2.13, FortiWeb 7.0.10 through 7.0.12 may allow a local privileged attacker to execute unauthorized code on the underlying system via crafted CLI commands.
Weakness: CWE-23
Which versions are affected by CVE-2026-39814?
It affects 1 product.
Products include Fortinet Fortiweb.
How do I fix CVE-2026-39814?
No fix has been published for CVE-2026-39814 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-2026-39814 being exploited?
There is no known exploitation of CVE-2026-39814 in the wild and no public exploit code.
Other vulnerabilities in Fortinet Fortiweb
Sources
Also known as GHSA-6q7w-cjq4-j969.