# CVE-2026-25690: Command injection in FortiDeceptor

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

- **Severity:** Medium 4.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 May 2026
- **Updated:** 8 Jul 2026
- **Also known as:** GHSA-mwp3-v9r9-4p9x

## 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 (Improper Neutralization of Argument Delimiters in a Command)

## Which versions are affected by CVE-2026-25690?

It affects 1 product.


Products: 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.

## Is CVE-2026-25690 being exploited?

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

## Other vulnerabilities in Fortinet FortiDeceptor

- [CVE-2020-29017](https://insights.sbomify.com/CVE-2020-29017/): Command injection in Fortinet FortiDeceptor (high 8.8)
- [CVE-2022-27487](https://insights.sbomify.com/CVE-2022-27487/): Missing authorization in FortiDeceptor (high 8.3)
- [CVE-2020-6644](https://insights.sbomify.com/CVE-2020-6644/): Auth bypass in Fortinet FortiDeceptor (high 8.1)
- [CVE-2022-38373](https://insights.sbomify.com/CVE-2022-38373/): Cross-site scripting in Fortinet FortiDeceptor (high 8.0)
- [CVE-2022-30302](https://insights.sbomify.com/CVE-2022-30302/): Path traversal in Fortinet FortiDeceptor (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25690 and fix it if it is affected.

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

Affected product: Fortinet FortiDeceptor. 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-2026-25690/ (Markdown: https://insights.sbomify.com/CVE-2026-25690/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25690
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25690
- OSV: https://osv.dev/vulnerability/CVE-2026-25690

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25690/
Summaries are generated and may contain mistakes; the official description above is the record.