# CVE-2026-126263: Fortinet FortiMail SQL injection

Source: https://junglewise.ai/threats/cve-2026-126263-a-improper-neutralization-of-special-elements-used-in-an-sql  
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-2026-126263 · Severity: critical · CVSS 9.8 · Published 2026-11-11

FortiMail is an email security gateway that protects organizations from email-borne threats. An SQL injection vulnerability in FortiMail allows authenticated attackers to execute arbitrary code or commands through maliciously crafted requests, potentially leading to privilege escalation, data exposure, or complete system compromise.

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

## Quick answers

**Is CVE-2026-126263 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-126263 being exploited in the wild.

**How severe is CVE-2026-126263?** Critical severity, with a CVSS score of 9.8, 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.

**Is there a fix for CVE-2026-126263?** Yes: fixed in FortiMail 8.0.2 or above, 7.6.7 or above, 7.4.7 or above. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-126263 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-126263?** Check whether you run Fortinet FortiMail 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 or above, 7.6.7 or above, 7.4.7 or above

## Technical details

An improper neutralization of special elements in SQL commands (CWE-89) affects FortiMail versions 8.0.0–8.0.1, 7.6.0–7.6.4, and 7.4.0–7.4.6. The vulnerability requires authentication and allows an attacker to inject SQL commands via specially crafted requests to execute unauthorized code or commands, potentially achieving escalation of privilege. Patches are available for all affected branches.

## 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

## Timeline

- 2026-11-10: disclosed

## References

- [https://fortiguard.fortinet.com/psirt/FG-IR-26-277](https://fortiguard.fortinet.com/psirt/FG-IR-26-277)

## Related threats

- [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)
- [Fortinet FortiMail memory allocation DoS](https://junglewise.ai/threats/cve-2026-126165-a-memory-allocation-with-excessive-size-value-vulnerability-in)