# CVE-2026-126144: Fortinet FortiMail os command injection in webmail

Source: https://junglewise.ai/threats/cve-2026-126144-a-improper-neutralization-of-special-elements-used-in-an-os  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-11. Updated: 2026-11-11  
License: CC BY 4.0 with a link back

CVE-2026-126144 · Severity: high · CVSS 8.8 · Published 2026-11-11

FortiMail is an email security and archiving gateway that protects enterprise inboxes from threats. An authenticated attacker can inject malicious commands through crafted HTTP requests, allowing them to execute arbitrary code on the mail server and potentially compromise email data and services.

Technologies: [Fortinet FortiMail](https://junglewise.ai/threats/technologies/fortimail), [Fortinet Fortivoice](https://junglewise.ai/threats/technologies/fortivoice). Vendors: [Fortinet](https://junglewise.ai/threats/vendors/fortinet).

## Quick answers

**Is CVE-2026-126144 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-126144 being exploited in the wild.

**How severe is CVE-2026-126144?** High severity, with a CVSS score of 8.8, published 11 November 2026.

**Which products and versions are affected?** Fortinet FortiMail 8.0.0 through 8.0.1, 7.6.0 through 7.6.4, 7.4.0 through 7.4.6, 7.2 all versions; Fortinet FortiRecorder 7.6.0 through 7.6.2, 7.2.0 through 7.2.12, 7.0.0 through 7.0.6; Fortinet Fortivoice 8.0.0 through 8.0.1, 7.4.0 through 7.4.2, 7.2.0 through 7.2.5, 7.0.0 through 7.0.8.

**Is there a fix for CVE-2026-126144?** Yes: fixed in FortiMail 8.0.2, 7.6.5, 7.4.7, 7.2 (migrate to fixed release); FortiRecorder 7.6.3, 7.2.13, 7.0.7; FortiVoice 8.0.2, 7.4.3, 7.2.6, 7.0.9. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-126144 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-126144?** Check whether you run Fortinet FortiMail, Fortinet FortiRecorder or Fortinet Fortivoice at an affected version. 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.

## How to fix

- Fixed in FortiMail 8.0.2, 7.6.5, 7.4.7, 7.2 (migrate to fixed release); FortiRecorder 7.6.3, 7.2.13, 7.0.7; FortiVoice 8.0.2, 7.4.3, 7.2.6, 7.0.9

## Technical details

An improper neutralization of special elements in OS commands (CWE-78) in the FortiMail webmail API allows authenticated attackers to execute unauthorized code via specially crafted HTTP requests. The vulnerability affects multiple versions of FortiMail, FortiRecorder, and FortiVoice. While exploitation requires authentication, successful exploitation grants full command execution on the affected appliance.

## Affected products

- Fortinet FortiMail 8.0.0 through 8.0.1, 7.6.0 through 7.6.4, 7.4.0 through 7.4.6, 7.2 all versions
- Fortinet FortiRecorder 7.6.0 through 7.6.2, 7.2.0 through 7.2.12, 7.0.0 through 7.0.6
- Fortinet FortiVoice 8.0.0 through 8.0.1, 7.4.0 through 7.4.2, 7.2.0 through 7.2.5, 7.0.0 through 7.0.8

## Timeline

- 2026-11-10: disclosed

## References

- [https://fortiguard.fortinet.com/psirt/FG-IR-26-196](https://fortiguard.fortinet.com/psirt/FG-IR-26-196)

## Related threats

- [Fortinet FortiMail SQL injection](https://junglewise.ai/threats/cve-2026-126263-a-improper-neutralization-of-special-elements-used-in-an-sql)
- [Fortinet FortiMail argument injection in administrative interface](https://junglewise.ai/threats/cve-2026-126169-a-improper-neutralization-of-argument-delimiters-in-a-command)
- [Fortinet FortiMail argument injection in administrative interface](https://junglewise.ai/threats/cve-2026-126168-a-improper-neutralization-of-argument-delimiters-in-a-command)
- [Fortinet FortiMail command injection in admin GUI](https://junglewise.ai/threats/cve-2026-126167-a-improper-neutralization-of-special-elements-used-in-a-command)
- [Fortinet FortiMail argument injection in admin interface](https://junglewise.ai/threats/cve-2026-126166-a-improper-neutralization-of-argument-delimiters-in-a-command)