# CVE-2026-105793: Microsoft UFO: Authenticated Android shell command injection in Mobile MCP `press_key`

> Authenticated attackers can inject shell commands via the press_key tool in Microsoft UFO, executing code as the Android shell user on connected devices.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L`)
- **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:** 6 Oct 2026
- **Updated:** 6 Oct 2026
- **Also known as:** GHSA-5cjx-4375-4877

## What is CVE-2026-105793?

CVE-2026-105793 is a critical command injection vulnerability in microsoft UFO, published on 6 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Microsoft UFO is an open-source framework for intelligent automation across devices and platforms. Prior to 3.0.9, the press_key tool in ufo/client/mcp/http_servers/mobile_mcp_server.py accepts a free-form key_code parameter and passes it to `adb shell input keyevent`. The adb client joins the arguments into a remote command string that the Android shell reparses, allowing an authenticated Mobile MCP caller to execute additional commands as the Android shell user on an authorized connected device. Exploitation requires a valid UFO_MCP_API_KEY, adb on the host, and a reachable authorized device, and it does not establish host operating-system execution, Android root execution, or access beyond the Android shell-user privileges. This issue is fixed in version 3.0.9.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-105793?


## How do I fix CVE-2026-105793?

No fix has been published for CVE-2026-105793 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-105793 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105793 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-105793 and fix it if it is affected.

What it is: CVE-2026-105793 is a critical command injection vulnerability in microsoft UFO, published on 6 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105793 exists.

Affected product: microsoft UFO. 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-2026-105793/ (Markdown: https://insights.sbomify.com/CVE-2026-105793/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-105793
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-105793
- OSV: https://osv.dev/vulnerability/CVE-2026-105793

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-105793/
Summaries are generated and may contain mistakes; the official description above is the record.