# CVE-2026-9680: MCP Server Exposure via Insecure Default Binding on alibabacloud-rds-openapi-mcp-server

> Remote attackers can invoke exposed MCP tools because the server binds to all network interfaces by default, requiring configuration changes to restrict access.

- **Severity:** Medium 5.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/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:** 28 Jul 2026
- **Updated:** 28 Jul 2026
- **Also known as:** GHSA-fw7c-j2q8-f24m

## What is CVE-2026-9680?

CVE-2026-9680 is a medium-severity vulnerability in Alibaba Cloud RDS OpenAPI MCP Server, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper exposure of the MCP server in alibabacloud-rds-openapi-mcp-server allows remote attackers to invoke exposed MCP tools via network access to an MCP endpoint listening on all network interfaces by default.

Weakness: CWE-1188 (Initialization of a Resource with an Insecure Default)

## Which versions are affected by CVE-2026-9680?


## How do I fix CVE-2026-9680?

No fix has been published for CVE-2026-9680 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9680 being exploited?

There is no known exploitation of CVE-2026-9680 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9680 and fix it if it is affected.

What it is: CVE-2026-9680 is a medium-severity vulnerability in Alibaba Cloud RDS OpenAPI MCP Server, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-9680 in the wild and no public exploit code.

Affected product: Alibaba Cloud RDS OpenAPI MCP Server. 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-2026-9680/ (Markdown: https://insights.sbomify.com/CVE-2026-9680/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9680
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9680
- OSV: https://osv.dev/vulnerability/CVE-2026-9680

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-9680/
Summaries are generated and may contain mistakes; the official description above is the record.