CVE-2026-126144 Command injection in FortiMail
Authenticated attackers can execute OS commands on Fortinet mail, recorder and voice appliances via crafted HTTP requests.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- None listed
What is CVE-2026-126144?
CVE-2026-126144 is a high-severity command injection vulnerability in Fortinet FortiMail, published on 11 Nov 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.4, FortiMail 7.4.0 through 7.4.6, FortiMail 7.2 all versions, FortiRecorder 7.6.0 through 7.6.2, FortiRecorder 7.2.0 through 7.2.12, FortiRecorder 7.0.0 through 7.0.6, FortiVoice 8.0.0 through 8.0.1, FortiVoice 7.4.0 through 7.4.2, FortiVoice 7.2.0 through 7.2.5, FortiVoice 7.0.0 through 7.0.8 may allow an authenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
Weakness: CWE-78
Which versions are affected by CVE-2026-126144?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-126144?
No fix has been published for CVE-2026-126144 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-2026-126144 being exploited?
There is no known exploitation of CVE-2026-126144 in the wild and no public exploit code.
Sources
Also known as GHSA-mhh2-4p48-jq77.