CVE-2026-25690 Command injection in FortiDeceptor

Medium 4.0 Published 12 May 2026 Updated 8 Jul 2026

Authenticated attackers with read-only admin permissions can read log files via argument injection in crafted HTTP requests.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-25690?

CVE-2026-25690 is a medium-severity command injection vulnerability in Fortinet FortiDeceptor, published on 12 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiDeceptor 6.0.0 through 6.0.2, FortiDeceptor 5.3.0 through 5.3.3, FortiDeceptor 5.2.0 through 5.2.1, FortiDeceptor 5.1 all versions, FortiDeceptor 5.0 all versions may allow an authenticated attacker with at least read-only admin permission to read log files via HTTP crafted requests.

Weakness: CWE-88

Which versions are affected by CVE-2026-25690?

It affects 1 product.

Products include Fortinet Fortideceptor.

How do I fix CVE-2026-25690?

No fix has been published for CVE-2026-25690 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-25690 being exploited?

There is no known exploitation of CVE-2026-25690 in the wild and no public exploit code.

Sources

Also known as GHSA-mwp3-v9r9-4p9x.