---
id: "CVE-2025-65719"
kind: "vulnerability"
aliases: ["CVE-2025-65719", "GHSA-94gr-w3q5-rfqr"]
title: "Open Source Kubectl MCP Server vulnerable to arbitrary code execution via user interaction with crafted HTML page"
severity: "critical"
cvss: 9.8
epss: 0.00578
exploited: false
status: "open"
category: "ai-tooling"
products: [{"name": "kubectl-mcp-server", "fixed": ["1.2.0"], "affected": "< 1.2.0", "ecosystem": "npm"}, {"name": "kubectl-mcp-server", "fixed": ["1.2.0"], "affected": "< 1.2.0", "ecosystem": "pypi"}]
ecosystems: ["npm", "pypi"]
tags: ["ai-tooling", "cwe-94", "developer-workstation", "kubernetes", "mcp", "npm", "python"]
not_affected_if: ["fixed-version-1.2.0-or-later"]
published_at: "2026-05-12T17:16:15+00:00"
first_seen_at: "2026-10-27T17:32:35+00:00"
updated_at: "2026-10-27T17:35:06+00:00"
sources: [{"source": "ghsa", "url": "https://github.com/advisories/GHSA-94gr-w3q5-rfqr", "first_seen_at": "2026-10-27T17:32:35+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-65719", "first_seen_at": "2026-10-27T17:32:47+00:00"}]
---

# Open Source Kubectl MCP Server vulnerable to arbitrary code execution via user interaction with crafted HTML page

The kubectl-mcp-server MCP server, published on npm and PyPI, can be made to execute arbitrary code on a victim's system when that user opens a crafted HTML page. The sources describe the attacker gaining code execution with the victim's privileges, which can include access to their Kubernetes credentials.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- npm:kubectl-mcp-server affected < 1.2.0 fixed 1.2.0
- pypi:kubectl-mcp-server affected < 1.2.0 fixed 1.2.0

## How to check

- Run `npm ls kubectl-mcp-server` or `pip show kubectl-mcp-server` and compare the version to `1.2.0`
- Check whether the MCP server is running on a developer workstation where a browser is also in use

## Fix

- Upgrade the npm package `kubectl-mcp-server` to `1.2.0` or later
- Upgrade the PyPI package `kubectl-mcp-server` to `1.2.0` or later

## Timeline

- 2026-10-27T17:32:35+00:00 ghsa https://github.com/advisories/GHSA-94gr-w3q5-rfqr
- 2026-10-27T17:32:47+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-65719

## From the sources

An issue in Open Source Kubectl MCP Server v1.1.1 allows attackers to execute arbitrary code on a victim system via user interaction with a crafted HTML page.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_