# CVE-2026-16800: Code injection in PowerShell Universal

> Authenticated users with schedule permissions can execute arbitrary PowerShell code via crafted parameter names in Devolutions PowerShell Universal.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 24 Jul 2026
- **Updated:** 24 Jul 2026
- **Also known as:** GHSA-7qq8-3vqq-3796

## What is CVE-2026-16800?

CVE-2026-16800 is a high-severity code injection vulnerability in Devolutions PowerShell Universal, published on 24 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Improper control of generation of code ('Code Injection') in the schedule feature in Devolutions PowerShell Universal 2026.2.2 and earlier allows an authenticated user with schedule creation permission to execute arbitrary PowerShell code via crafted schedule parameter names concatenated into a script invocation.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2026-16800?

It affects 1 product.


Products: Devolutions Powershell Universal.

## How do I fix CVE-2026-16800?

No fix has been published for CVE-2026-16800 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16800 being exploited?

There is no known exploitation of CVE-2026-16800 in the wild and no public exploit code.

## Other vulnerabilities in Devolutions PowerShell Universal

- [CVE-2026-16801](https://insights.sbomify.com/CVE-2026-16801/): Code injection in PowerShell Universal (high 8.8)
- [CVE-2026-16798](https://insights.sbomify.com/CVE-2026-16798/): Information disclosure in PowerShell Universal (medium 6.5)
- [CVE-2026-16802](https://insights.sbomify.com/CVE-2026-16802/): Information disclosure in PowerShell Universal (medium 6.5)
- [CVE-2026-13437](https://insights.sbomify.com/CVE-2026-13437/): Information disclosure in PowerShell Universal (medium 6.5)
- [CVE-2026-16799](https://insights.sbomify.com/CVE-2026-16799/): Missing authorization in PowerShell Universal (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16800 and fix it if it is affected.

What it is: CVE-2026-16800 is a high-severity code injection vulnerability in Devolutions PowerShell Universal, published on 24 Jul 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-2026-16800 in the wild and no public exploit code.

Affected product: Devolutions PowerShell Universal. 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-2026-16800/ (Markdown: https://insights.sbomify.com/CVE-2026-16800/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16800
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16800
- OSV: https://osv.dev/vulnerability/CVE-2026-16800

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-16800/
Summaries are generated and may contain mistakes; the official description above is the record.