# CVE-2024-28886: Command injection in UTAU

> Attackers can execute arbitrary OS commands by tricking users into opening a crafted UTAU project file.

- **Severity:** High 8.4 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 May 2024
- **Updated:** 2 Aug 2024

## What is CVE-2024-28886?

CVE-2024-28886 is a high-severity command injection vulnerability in ameya/ayame UTAU, published on 28 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

OS command injection vulnerability exists in UTAU versions prior to v0.4.19. If a user of the product opens a crafted UTAU project file (.ust file), an arbitrary OS command may be executed.

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

## Which versions are affected by CVE-2024-28886?


## How do I fix CVE-2024-28886?

No fix has been published for CVE-2024-28886 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-28886 being exploited?

There is no known exploitation of CVE-2024-28886 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-28886 and fix it if it is affected.

What it is: CVE-2024-28886 is a high-severity command injection vulnerability in ameya/ayame UTAU, published on 28 May 2024. 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-2024-28886 in the wild and no public exploit code.

Affected product: ameya/ayame UTAU. 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-2024-28886/ (Markdown: https://insights.sbomify.com/CVE-2024-28886/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-28886
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-28886
- OSV: https://osv.dev/vulnerability/CVE-2024-28886

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-28886/
Summaries are generated and may contain mistakes; the official description above is the record.