# CVE-2025-63604: Code injection in n/a

> Attackers can execute arbitrary Python code via malicious queries, leading to AWS credential theft and system compromise in the MCP server library.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Nov 2025
- **Updated:** 18 Nov 2025
- **Also known as:** GHSA-fxw5-f8vf-f238

## What is CVE-2025-63604?

CVE-2025-63604 is a medium-severity code injection vulnerability in n/a, published on 18 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A code injection vulnerability exists in baryhuang/mcp-server-aws-resources-python 0.1.0 that allows remote code execution through insufficient input validation in the execute_query method. The vulnerability stems from the exposure of dangerous Python built-in functions (__import__, getattr, hasattr) in the execution namespace and the direct use of exec() to execute user-supplied code. An attacker can craft malicious queries to execute arbitrary Python code, leading to AWS credential theft (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY), file system access, environment variable disclosure, and potential system compromise. The vulnerability allows attackers to bypass intended security controls and gain unauthorized access to sensitive AWS resources and credentials stored in the server's environment.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2025-63604?

It affects 1 product.


Products: Baryhuang Aws Resources Mcp Server.

## How do I fix CVE-2025-63604?

No fix has been published for CVE-2025-63604 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-63604 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63604 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-63604 and fix it if it is affected.

What it is: CVE-2025-63604 is a medium-severity code injection vulnerability in n/a, published on 18 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63604 exists.

Affected product: n/a. 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-2025-63604/ (Markdown: https://insights.sbomify.com/CVE-2025-63604/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-63604
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-63604
- OSV: https://osv.dev/vulnerability/CVE-2025-63604

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-63604/
Summaries are generated and may contain mistakes; the official description above is the record.