# CVE-2026-39809: SQL injection in FortiClientEMS

> An attacker can execute unauthorized code or commands by sending crafted requests to FortiClient EMS due to SQL injection.

- **Severity:** Medium 6.2 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Apr 2026
- **Updated:** 15 Apr 2026
- **Also known as:** GHSA-g2q7-p5pr-qxqg

## What is CVE-2026-39809?

CVE-2026-39809 is a medium-severity SQL injection vulnerability in Fortinet FortiClientEMS, 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

A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.0 through 7.4.5, FortiClientEMS 7.2.0 through 7.2.12, FortiClientEMS 7.0 all versions may allow attacker to execute unauthorized code or commands via sending crafted requests

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2026-39809?

It affects 1 product.


Products: Fortinet Forticlientems.

## How do I fix CVE-2026-39809?

No fix has been published for CVE-2026-39809 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-39809 being exploited?

There is no known exploitation of CVE-2026-39809 in the wild and no public exploit code.

## Other vulnerabilities in Fortinet FortiClientEMS

- [CVE-2026-35616](https://insights.sbomify.com/CVE-2026-35616/): Fortinet FortiClient EMS Improper Access Control (critical 9.1, exploited in the wild)
- [CVE-2026-21643](https://insights.sbomify.com/CVE-2026-21643/): Fortinet FortiClient EMS SQL Injection (critical 9.1, exploited in the wild)
- [CVE-2024-23106](https://insights.sbomify.com/CVE-2024-23106/): Auth bypass in FortiClientEMS (high 7.7)
- [CVE-2025-59922](https://insights.sbomify.com/CVE-2025-59922/): SQL injection in FortiClientEMS (medium 6.8)
- [CVE-2026-59836](https://insights.sbomify.com/CVE-2026-59836/): Security feature bypass in FortiClientEMS (medium 6.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-39809 and fix it if it is affected.

What it is: CVE-2026-39809 is a medium-severity SQL injection vulnerability in Fortinet FortiClientEMS, published on 14 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-39809 in the wild and no public exploit code.

Affected product: Fortinet FortiClientEMS. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-39809/ (Markdown: https://insights.sbomify.com/CVE-2026-39809/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-39809
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-39809
- OSV: https://osv.dev/vulnerability/CVE-2026-39809

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-39809/
Summaries are generated and may contain mistakes; the official description above is the record.